Reference Specimens
The Folch Collection

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Photos by Fabre Minerals. Under Creative Commons license

This page provides a selection of the specimensthat were in the Folch Collection that have passed through the Fabre Minerals website and, due to their quality,
rarity, or significance as specimens from interesting locations, have been preserved as reference specimens in #MVM
We hope that you enjoy your visit, even if it is just to see this page!

Carles Curto Text: Carles Curto (former Geology Museum, Barcelona curator) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White

 


The Folch Collection

The Folch Collection was known during the period 1960-1980 as one of the best private collections in the world. It was famous worldwide for its size (more than 15,000 specimens), the quality of the specimens, the large number of classic specimens which are now almost impossible to obtain, and the style of the collection, which is surprisingly 'modern'. Sr. Folch (Joaquín Folch Girona) collected during a period when the style of most collectors in Europe consisted of gathering large specimens of rare minerals, and in which esthetics and perfection were not that important. That said he actually tended to collect smaller specimens that were esthetic and, when possible, damage free. On the death of Sr. Folch, in 1984, the collection passed to his son Alberto, and when he in turn died it went to his grandson Joaquín Folch who wisely decided to keep the collection exactly as his grandfather had it (including the display cases). So the collection was kept together and its enormous historical value has not been lost.

While I was a teenager I had the luck to have been warmly invited by Sr. Folch to visit the collection. I made numerous visits, and with him beside me I obtained an enormous amount of mineralogical information which went far beyond what I would have learned anywhere else. Given this experience I have always had a strong connection with the collection.

During my ongoing contacts with the Folch family a moment arrived when they expressed their desire to update the collection so as to make it more current - since 1984 nothing new had been added so there was a significant gap in the minerals found since then. After lots of friendly and unhurried discussions the Folch family asked me to help them with this updating process. To do this we had the good fortune that the collection included many attractive duplicates. These duplicates do not add much to the Folch collection, as there are other examples of all of them, but given their unusual localities and/or high quality they still represent good commercial specimens.

So, for the first time, some of the duplicate specimens from the Folch Collection are emerging into the sunlight. Each one of them has hand written notes made by Sr. Folch himself as well as, in many cases, his personal label and number (in the case that they were part of the major collection). The duplicates will be sold during the shows that we normally attend, and also through our web site and store in Barcelona (you need to arrange a visit beforehand, which we will try to find a way of accommodating visitors)

This project will take us a long time, as the specimens available are numerous and neither the family nor I wish to make the choices too quickly. The idea is to work slowly and select the pieces in a very systematic and careful manner. We think that given the special characteristics of the specimens that will be available and their historical value this will be a great chance for many collectors to obtain pieces that would otherwise have remained pure dreams.

We hope that little by little we can satisfy all those that wish to acquire a duplicate from the Folch collection and we can assure them that this task will give us far more pleasure than simple economic benefits. Sr. Folch was my spiritual father in mineralogical terms so handling his minerals and helping to improve his collection with new purchases is a fantastic sensation for me because the profits gained from the sale of these duplicates are used to acquire more contemporary specimens, thus satisfying the family's desire to update the collection.

I cannot thank the Folch family enough for their good faith and for their wish to improve the collection. They are helped by the undeniable support and enthusiasm of Francisco Riquelme, the current conservator of the collection, and between them they have taken a step that many people have wished them to take and that will give great joy to collectors worldwide, as well as increasing interest in and knowledge of the Folch collection in Spain and the rest of the world.

 


1926: Mineralogical Society, Jubilee Celebration.
Sr. Folch is the third from the right in the first row on foot

 

 

 


Sr. Folch holding an Apatite from Panasqueira

 

 

 

 

Typical handwritten labels from the Folch Collection

 



Typical record from the Folch Collection

 

USA


Alaska

Epidote with Quartz
Epidote with Quartz.
Epidote with Quartz  

RL13M2: Doubly terminated Epidote crystal, with parallel growths and very sharp faces and edges. With small Quartz crystals.
Green Monster Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska  USA (±1954)

Specimen size: 3.6 × 2.1 × 2 cm = 1.42” × 0.83” × 0.79”

Main crystal size: 3.6 × 1.7 cm = 1.42” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Epidote with Quartz
 

RZ8F8: A Prince of Wales classic. The long crystals of Epidote, apart from the perfect development of the faces, have a good degree of translucence and contrast with the numerous crystals of Quartz. Folch bought this from Al McGuinness in 1972 at Tucson.
Copper Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska  USA (±1972)

Specimen size: 6 × 5 × 3.3 cm = 2.36” × 1.97” × 1.30”

Main crystal size: 3.8 × 1.6 cm = 1.50” × 0.63”

With handwritten note & record from the Folch Collection (duplicates)
Epidote with Quartz.
Epidote with Quartz.

Arizona

Copper
Copper. Copper.
 

RV59H7: Extraordinary miniature. Faces and edges of the crystals have a very uncommon definition and the crystals forms are complex. Furthermore they are practically unaltered so they have an intense color and luster.
Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA

Specimen size: 3.4 × 2.3 × 1.7 cm = 1.34” × 0.91” × 0.67”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With record from the Folch Collection (duplicates)

Probably Opal intense fluorescence short UV
Copper
 

RD47K4: Arborescent growth of crystals very much better defined than usual in this kind of sample, perfectly conserved. On the back of the Schneider's label that is with the specimen is written the year 1969.
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA (±1969)

Specimen size: 9.3 × 3.3 × 2.4 cm = 3.66” × 1.30” × 0.94”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Opal? intense fluorescence short UV & fluorescent long UV
Copper. Front
Front
Copper. Rear
Rear
Copper.
Ajoite with Shattuckite
Ajoite with Shattuckite. Ajoite with Shattuckite.
Ajoite with Shattuckite  

RX61M3: Well defined radially fibrous Shattuckite crystals accompanied by light blue Ajoite crystals in the small vugs of the sample (Ajoite specimens are usually massive)
One can read on the card that the specimen was purchased in 1959 from Scott J. Williams (Southwest Co.) of Scottsdale, Arizona. The piece is accompanied by a handwritten label and a card (Nr. 4988) from the Folch collection that we will send to the buyer.
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA (±1959)

Specimen size: 5.5 × 4.7 × 3.2 cm = 2.17” × 1.85” × 1.26”

With handwritten note & record from the Folch Collection (duplicates)
Ajoite and Plancheite
Ajoite and Plancheite  

RY11AB7: Fibrous and crystalline Ajoite aggregates, on matrix, with a very deep and intense color. They are with Plancheite that has a clearer color. The sample is from the type locality for the species.
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA (±1959)

Specimen size: 8.3 × 3.8 × 3 cm = 3.27” × 1.50” × 1.18”

Type locality

With handwritten note from the Folch Collection (duplicates)
Ajoite and Plancheite. Ajoite and Plancheite.
Cuprite (variety chalcotrichite) with Copper
Cuprite (variety chalcotrichite) with Copper. Cuprite (variety chalcotrichite) with Copper.
 

RC6K4: Fibrous aggregates of excellent luster and very intense red color on laminar growths of native Copper on matrix.
Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA (±1973)

Specimen size: 7.7 × 6 × 5 cm = 3.03” × 2.36” × 1.97”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper
 

RF13S7: Small crystals of Cuprite on an arborescent growth of native Copper. They are very sharp, with a dominant octahedron modified by smaller cube faces and are intensely sherry red and very bright.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA (±1964)

Specimen size: 1.7 × 1.3 × 0.8 cm = 0.67” × 0.51” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper.
Cuprite with Copper
Cuprite with Copper. Front
Front
Cuprite with Copper. Rear
Rear
Cuprite with Copper.
Cuprite with Copper  

RM14AE6: Aggregates of small cubo-octahedral Cuprite crystals that are very bright, with dendritic growths of octahedral native Copper crystals. Both this kind of sample and the locality are American classics.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA

Specimen size: 3.8 × 3.1 × 1.8 cm = 1.50” × 1.22” × 0.71”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper
Cuprite with Copper  

RG60AE6: Aggregates of small cubo-octahedral Cuprite crystals that are very bright, with dendritic growths of octahedral native Copper crystals. Both this kind of sample and the locality are American classics.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA

Specimen size: 8.2 × 4.2 × 1.8 cm = 3.23” × 1.65” × 0.71”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper. Front
Front
Cuprite with Copper. Rear
Rear
Cuprite with Copper.
Cuprite
Cuprite. Cuprite.
 

RD96V0: Arborescent growths of copper covered by cubic crystals of Cuprite, translucent, bright and vivid red in color. Of excellent quality for the locality, a great North American classic.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA (±1964)

Specimen size: 9.3 × 6 × 1.5 cm = 3.66” × 2.36” × 0.59”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite (variety chalcotrichite) with Copper
Cuprite (variety chalcotrichite) with Copper  

RH6V0: Arborescent growths of crystals of native Copper on matrix, with mossy aggregates of very thin fibrous crystals of Cuprite (variety chalcotrichite), very bright and with deep red color.
We’ll send the Minerals Unlimited label to the buyer of the specimen.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA (±1963)

Specimen size: 6.8 × 5.5 × 2 cm = 2.68” × 2.17” × 0.79”

With handwritten note & record from the Folch Collection (duplicates)
Cuprite (variety chalcotrichite) with Copper. Cuprite (variety chalcotrichite) with Copper.
Cuprite (Chalcotrichite) with Copper
Cuprite (Chalcotrichite) with Copper. Front
Front
Cuprite (Chalcotrichite) with Copper. Rear
Rear
Cuprite (Chalcotrichite) with Copper.
Cuprite (Chalcotrichite) with Copper  

RD47R6: Coatings of feltlike crystals of Chalcotrichite, with very intense luster and red color, on a dendritic growth of flattened crystals of native Copper on matrix. An U.S. classic that Folch acquired in 1971 from the well known Swiss dealers Siber + Siber.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA (±1971)

Specimen size: 10.6 × 8 × 4.1 cm = 4.17” × 3.15” × 1.61”

With handwritten note from the Folch Collection (duplicates)
Cuprite (Chalcotrichite) with Copper
Cuprite (Chalcotrichite) with Copper  

RH47K8: Small but numerous groups of fibrous Cuprite crystals (Chalcotrichite), very bright and vivid red in color, on laminar growths of native Copper on matrix. The locality, a classic for Chalcotrichite (and for native Copper), makes this specimen even more interesting.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA (±1971)

Specimen size: 12.2 × 7.4 × 4 cm = 4.80” × 2.91” × 1.57”

With handwritten note from the Folch Collection (duplicates)
Cuprite (Chalcotrichite) with Copper. Front
Front
Cuprite (Chalcotrichite) with Copper. Rear
Rear
Cuprite (Chalcotrichite) with Copper.
Copper
Copper. Copper.
 

RB27I2: Dendritic growth of crystals, some of them very well defined, bright and with small coverage of Quartz.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA

Specimen size: 13.8 × 9.5 × 3 cm = 5.43” × 3.74” × 1.18”

Main crystal size: 2.1 × 0.8 cm = 0.83” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Copper
 

RL64L9: A miniature from a classic locality. Arborescent growth of Copper crystals, some of them well defined.
The piece is accompanied by a handwritten label from the Folch collection that we will send to the buyer.
Bisbee, Warren District, Mule Mountains, Cochise County, Arizona  USA

Specimen size: 3.5 × 2.4 × 2.3 cm = 1.38” × 0.94” × 0.91”

With handwritten note from the Folch Collection (duplicates)

Fluorescent short UV
Copper.
Copper with Cuprite
Copper with Cuprite.
Copper with Cuprite.
 

RP38F8: Aerial growth of crystals of Cuprite (cube + dodecahedra) with slightly curved edges and on a matrix of native copper crystals. It was a 1961 gift from Mr. Albert Haag, of Tucson, as shown on the record for this one.
Bisbee, Warren District, Mule Mountains, Cochise County, Arizona  USA (±1961)

Specimen size: 3.4 × 2.3 × 1.9 cm = 1.34” × 0.91” × 0.75”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”

With handwritten note & record from the Folch Collection (duplicates)
Cuprite with Copper
Cuprite with Copper  

RA60V0: Groups of small octahedral crystals of Cuprite with sharp faces and edges and with intense red color. They are on a matrix of massive Cuprite and with thick growths of Copper.
With a label of the legendary company Foote that we'll send to the buyer.
Copper Queen Mine, Queen Hill, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona  USA (±1952)

Specimen size: 6.1 × 3.6 × 3.1 cm = 2.40” × 1.42” × 1.22”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper.
Cuprite with Copper. Cuprite with Copper.
Calcite with Brochantite
Calcite with Brochantite.
Calcite with Brochantite  

RB59M3: Group of complex Calcite crystals, translucent and with a intense brilliance, accompanied by centered acicular green Brochantite crystal growths.
This sample was purchased from Hugh A. Ford, of New York, in 1959. The piece is accompanied by a handwritten label and a card (Nr. 2974) from the Folch Collection.
Bisbee, Warren District, Mule Mountains, Cochise County, Arizona  USA (±1959)

Specimen size: 3.7 × 3.3 × 2.7 cm = 1.46” × 1.30” × 1.06”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Wulfenite with Mimetite
Wulfenite with Mimetite  

RQ86M0: Very well defined Wulfenite crystals, with an excellent color and luster and on matrix.
The specimen is accompanied by an old label from the “Antigua Casa Soler y Pujol” (old Soler & Pujol establishment) an antique Natural Science materials supplier from Barcelona. On the back side of the label appears a handwritten note from Mr. Folch where he was recording that he bought the specimen in 1953.

Mammoth-St. Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal County, Arizona  USA (±1953)

Specimen size: 4.5 × 4.5 × 2.8 cm = 1.77” × 1.77” × 1.10”

Main crystal size: 0.9 × 0.7 cm = 0.35” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Wulfenite with Mimetite. Wulfenite with Mimetite.
Wulfenite with Mimetite
Wulfenite with Mimetite. Front
Front
Wulfenite with Mimetite. Rear
Rear
Wulfenite with Mimetite  

RJ38H0: A group of laminar crystals of intense orange-yellow color, very bright and partially covered by orange Mimetite. The mine is now an American classic. The piece has an important “pedigree” because it has a label showing a double provenance: The Scott J. Williams collection, of Arizona, and the C.J. Hansen collection where the piece was originally.
Mammoth-St. Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal County, Arizona  USA (±1957)

Specimen size: 7.2 × 6.3 × 3.8 cm = 2.83” × 2.48” × 1.50”

Main crystal size: 1.3 × 1.2 cm = 0.51” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Dioptase with Wulfenite
 

RB27F8: From the Mammoth Mine, no less! A group of Dioptase crystals with magnificent color, on matrix, and with the rare feature of some Wulfenite.
Mammoth-St. Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal County, Arizona  USA (±1959)

Specimen size: 3.3 × 2.4 × 1.8 cm = 1.30” × 0.94” × 0.71”

With handwritten note & record from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Dioptase with Wulfenite.
Dioptase with Wulfenite.
Wulfenite
Wulfenite.
Wulfenite  

RL87F8: A classic from the Red Cloud Mine. Two crystals that have excellent brilliance and color and that are on matrix. From the 1970s finds, which is when he bought it.
Red Cloud Mine, Trigo Mountains, Silver District, La Paz County, Arizona  USA

Specimen size: 2.5 × 2 × 1.5 cm = 0.98” × 0.79” × 0.59”

With handwritten note & record from the Folch Collection (duplicates)

Arkansas

Twinned Rutile
 

RC37F8: A magnificent cyclic twin from the classic Magnet Cove locality. The perfect twin! A floater as the base has recrystallized. The typed Schortmann’s Minerals label also has some handwritten notes made by Folch.
Magnet Cove, Hot Spring County, Arkansas  USA (±1956)

Specimen size: 2.6 × 2.4 × 2.9 cm = 1.02” × 0.94” × 1.14”

With handwritten note & record from the Folch Collection (duplicates)
Twinned Rutile.

California

Linarite
Linarite. Linarite.
Linarite  

RP63M0: Uncommon specimen from a classic locality formed by small acicular and bladed Linarite crystals on matrix.
The specimen is accompanied by a Lidstrom’s label.
Blue Bell Mine, Baker, Soda Lake Mountains, San Bernardino County, California  USA

Specimen size: 5.8 × 4.4 × 2.5 cm = 2.28” × 1.73” × 0.98”

Main crystal size: 0.5 × 0.1 cm = 0.20” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Caledonite with Linarite
Caledonite with Linarite  

RB18G2: A sample from a very uncommon locality that we must not confuse with the better known Mammoth-St. Anthony mine. Caledonite, greenish-blue and vitreous, is with Linarite and they are very abundant on the Limonite matrix. This specimen was purchased from Burminco (George Burnham)
Baker, Soda Lake Mountains, San Bernardino County, California  USA (±1955)

Specimen size: 8 × 6.3 × 5.2 cm = 3.15” × 2.48” × 2.05”

With handwritten note & record from the Folch Collection (duplicates)
Caledonite with Linarite.
Caledonite with Linarite. Caledonite with Linarite.
Elbaite
Elbaite. Front
Front
Elbaite. Rear
Rear
Elbaite  

RC48M2: Very well defined Elbaite, very transparent, with extraordinary colors ranging from a lively red to intense pink from the middle to the upper perfect terminal faces. The specimen which by its aspect does not seem, at first glance, from Pala, is accompanied by a handwritten note from Sr. Folch where one can read that it was collected in Pala (California) by Sr. Folch in person, in 1974, so we give credence to the locality.
Pala Chief Mine, Chief Mountain, Pala, Pala District, San Diego County, California  USA (02/1974)

Specimen size: 4.1 × 1.4 × 1.2 cm = 1.61” × 0.55” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Elbaite (variety rubellite) with Quartz
 

RA36Z4: Radiating aggregates on a Quartz matrix of bright translucent crystals with an intense pink color. Really an "oldie" from Pala, typical of the end of the 70's.
Pala District, San Diego County, California  USA (±1973)

Specimen size: 7.2 × 5.3 × 2.8 cm = 2.83” × 2.09” × 1.10”

Main crystal size: 3.4 × 0.3 cm = 1.34” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Elbaite (variety rubellite) with Quartz.
Spodumene (variety kunzite)
Spodumene (variety kunzite). Front
Front
Spodumene (variety kunzite). Top
Top
 

FA47K0: Floater doubly terminated crystal with dissolution forms and anomaly growths. Its color is exceptionally intense. The original label notes that the specimen was sold to Sr. Folch by Mr. Bouest (or Bouert), from Los Angeles, October 1962.
Pala Chief Mine, Chief Mountain, Pala, Pala District, San Diego County, California  USA (±1962)

Specimen size: 4.1 × 4 × 2.5 cm = 1.61” × 1.57” × 0.98”

With record from the Folch Collection (duplicates)

Minor fluorescence with long & short UV
Spodumene (variety kunzite)
 

RC13K9: Floater and doubly terminated Spodumene crystal with multiple terminations at both ends. Pink color, with a strong dichroism.
Pala Chief Mine, Chief Mountain, Pala, Pala District, San Diego County, California  USA (±1962)

Specimen size: 5.2 × 2.8 × 1.2 cm = 2.05” × 1.10” × 0.47”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Spodumene (variety kunzite). Front
Front
Spodumene (variety kunzite). Rear
Rear
Spodumene (variety kunzite)
Spodumene (variety kunzite). Front
Front
Spodumene (variety kunzite). Rear
Rear
 

FB36K0: Floater doubly terminated crystal with rounded terminations. The color is good and especially intense on the extremities of the crystal.
Pala Chief Mine, Chief Mountain, Pala, Pala District, San Diego County, California  USA (±1962)

Specimen size: 5.7 × 2.8 × 1.3 cm = 2.24” × 1.10” × 0.51”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence with long & short UV
Rutile
 

TY11I8: Prismatic crystal with very well defined faces and edges. It is sharp, bright and dark brown.
Champion Mine, White Mountain Peak, White Mountains, Mono County, California  USA (±1959)

Specimen size: 1.5 × 1.5 × 1.3 cm = 0.59” × 0.59” × 0.51”

With handwritten note from the Folch Collection (duplicates)
Rutile.
Rutile
Rutile.
 

TX10I8: Prismatic crystal with very well-defined faces and edges. It has translucent reddish zones. The crystal is partially covered by matrix.
Champion Mine, White Mountain Peak, White Mountains, Mono County, California  USA (±1959)

Specimen size: 1.7 × 1.3 × 1.4 cm = 0.67” × 0.51” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Inesite
Inesite  

RP49J1: Specimen of good color and good crystallization from this locality, classic for Inesite.
The specimen is accompanied by a Lidstrom’s label.
Hale Creek Mine, Mad River Rock, Coastal Range, Trinity County, California  USA (±1973)

Specimen size: 6.8 × 5.8 × 3.4 cm = 2.68” × 2.28” × 1.34”

Main crystal size: 1.5 × 0.8 cm = 0.59” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Inesite.
Inesite.
Andradite
Andradite.
Andradite  

RE16G6: Crystals reach a considerable size and have an excellent luster. They show equal development of rhombohedral and trapezohedral forms, with some other faces of the cubic system. One of the crystals has a contact on one of its faces. A good sample from this classic American locality.
Calaveras County, California  USA (±1958)

Specimen size: 4.7 × 3.7 × 2.9 cm = 1.85” × 1.46” × 1.14”

Main crystal size: 3.4 × 2.7 cm = 1.34” × 1.06”

With handwritten note & record from the Folch Collection (duplicates)
Cristobalite with Tridymite and Fayalite on Obsidian
Cristobalite  with Tridymite and Fayalite on Obsidian  

RP96S7: Small olive green laminar crystals of Fayalite in a spherical nodule of Cristobalite with Tridymite included in obsidian. The crystals have not been analyzed but the attribution is supported by an original label from Burminco (George Burnham), that we consider trustworthy.
Coso Hot Springs deposit, Coso Hot Springs, Coso District, Inyo County, California  USA (±1964)

Specimen size: 7.2 × 4.5 × 4.7 cm = 2.83” × 1.77” × 1.85”

With handwritten note from the Folch Collection (duplicates)
Cristobalite  with Tridymite and Fayalite on Obsidian. Cristobalite  with Tridymite and Fayalite on Obsidian.
Axinite-(Fe) with Amphibole
Axinite-(Fe) with Amphibole. Front
Front
Axinite-(Fe) with Amphibole. Rear
Rear
 

RE61M5: Sharp crystals, brown with mauve shades, with an indeterminate amphibole that forms aggregates of acicular green crystals. We investigated the locality to document it more precisely but we haven’t found more details or similar comparative material, so we retain the name furnished by Folch documentation.
Mariposa County, California  USA

Specimen size: 3.7 × 3 × 3.5 cm = 1.46” × 1.18” × 1.38”

Main crystal size: 3 × 1.4 cm = 1.18” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Lawsonite
Lawsonite  

RX14G2: An old sample from a very uncommon locality that we must not confuse with the type locality (Tiburon Peninsula). Pink crystals are well developed on a Glaucophane matrix. The sample was collected by Scott J. Williams (Scottsdale, Arizona) in 1948 and it was purchased from him by Folch in 1961.
Valley Ford, Sonoma County, California  USA (1948)

Specimen size: 3.5 × 3.2 × 3 cm = 1.38” × 1.26” × 1.18”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

With handwritten note & record from the Folch Collection (duplicates)
Lawsonite.
Artinite
Artinite. Artinite.
Artinite  

RT14Z4: Globular growths of white, silky and bright Artinite crystals coating an Antigorite (variety serpentine) matrix.
Artinite Pit, Clear Creek, Picacho Peak, New Idria District, Diablo Range, San Benito County, California  USA (±1965)

Specimen size: 7.5 × 6.5 × 4.1 cm = 2.95” × 2.56” × 1.61”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence short UV

Colorado

Pyrite
 

RA12N4: From an American classic locality. Although originally labeled as Bravoite in reference to the grayish coating on Pyrite crystals, our analysis didn't confirm the existence of Bravoite. Subsequent consultations also confirm that it is not Bravoite and, even knowing that similar specimens could also contain Molybdenite, this species didn't appear in our analysis.
Gilman, Gilman District, Eagle County, Colorado  USA

Specimen size: 5.2 × 3.6 × 3 cm = 2.05” × 1.42” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Pyrite. Front
Front
Pyrite. Side
Side
Rhodochrosite with Quartz
Rhodochrosite with Quartz.
 

RE87H0: A nice group of lenticular crystals with scaled surface, very typical of the historic find in the American Tunnel mine. They are partially covered by micro-crystals of Quartz and their color and luster are magnificent.
Sunnyside Mine group (American Tunnel Mine), Bonita Peak, Gladstone, Eureka District, San Juan County, Colorado  USA (±1966)

Specimen size: 2.8 × 2.6 × 1.9 cm = 1.10” × 1.02” × 0.75”

Main crystal size: 1.2 × 0.6 cm = 0.47” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Rhodochrosite with Quartz
 

RA46H0: Two rhombohedral crystals with very sharp faces and edges on a white matrix of small Quartz crystals. Color is good for the locality which we must point out is historic.
Sunnyside Mine group (American Tunnel Mine), Bonita Peak, Gladstone, Eureka District, San Juan County, Colorado  USA (±1966)

Specimen size: 3.5 × 2 × 1.5 cm = 1.38” × 0.79” × 0.59”

Main crystal size: 1.8 × 1.6 cm = 0.71” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Rhodochrosite with Quartz.
Rhodochrosite on Quartz
Rhodochrosite on Quartz.
Rhodochrosite on Quartz.
 

RB97F9: Spheroidal aggregates of lenticular crystals with an intense pink color, contrast with the white Quartz matrix. The Color and brightness are better than usual in the samples from this historical mine.
Sunnyside Mine group (American Tunnel Mine), Bonita Peak, Gladstone, Eureka District, San Juan County, Colorado  USA

Specimen size: 5 × 3.3 × 2 cm = 1.97” × 1.30” × 0.79”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”

With handwritten note & record from the Folch Collection (duplicates)
Hübnerite
 

RK70H0: An excellent classic, with very sharp crystals in groups of parallel growths, with the best color and luster and an esthetic contrast with the snowy white matrix. A very difficult specimen to find today.
Adams Mine, Cement Creek, Silverton, Eureka District, San Juan County, Colorado  USA

Specimen size: 5.1 × 3.4 × 4.5 cm = 2.01” × 1.34” × 1.77”

Main crystal size: 3 × 1.6 cm = 1.18” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Hübnerite. Front
Front
Hübnerite. Rear
Rear
Hübnerite.
Hübnerite with Quartz
Hübnerite with Quartz. Front
Front
Hübnerite with Quartz. Rear
Rear
Hübnerite with Quartz  

RT89J1: Specimen from a classic locality, very different from those from other well known localities for Hübnerite. Crystals are extraordinarily flat and bright and form almost leafy aggregates. The color is bronze-red, typical of its place of origin and contrasts with the white concretions of Quartz.
Adams Mine, Cement Creek, Silverton, Eureka District, San Juan County, Colorado  USA (±1955)

Specimen size: 8.7 × 6.5 × 3.5 cm = 3.43” × 2.56” × 1.38”

With handwritten note from the Folch Collection (duplicates)
Microcline (variety amazonite)
Microcline (variety amazonite)  

RA38F9: In this single crystal the color is magnificent, and the faces are exceptionally well-developed.
Pikes Peak, El Paso County, Colorado  USA (±1926)

Specimen size: 4.5 × 3.9 × 4.3 cm = 1.77” × 1.54” × 1.69”

With handwritten note & record from the Folch Collection (duplicates)
Microcline (variety amazonite). Front
Front
Microcline (variety amazonite). Top
Top
Microcline (variety amazonite) "whitecap"
Microcline (variety amazonite) "whitecap". Front
Front
Microcline (variety amazonite) "whitecap". Top
Top
Microcline (variety amazonite) "whitecap"  

RL27K9: Amazonite crystal with a second crystallization phase, known as “whitecap” (or white termination), the top side of the amazonite is this color.
Pikes Peak, El Paso County, Colorado  USA (±1964)

Specimen size: 8.1 × 5.9 × 3.3 cm = 3.19” × 2.32” × 1.30”

With handwritten note & record from the Folch Collection (duplicates)
Topaz
 

RY96M2: A colorless topaz specimen with an irregular growth but with well defined faces and edges. We would like to emphasize the locality, very unusual for good sized Topaz crystals.
Pikes Peak, El Paso County, Colorado  USA

Specimen size: 5.6 × 3.7 × 1.4 cm = 2.20” × 1.46” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Topaz.
Hummerite
Hummerite.
Hummerite  

RK64J1: The specimen, from the type locality, is very representative of this rare vanadate. It forms deep orange microcrystals on matrix.
We will send the label of the sample, from Minerals Unlimited, Berkeley, California, to the buyer.
Hummer Mine, Paradox Valley, Uravan District, Montrose County, Colorado  USA (±1959)

Specimen size: 4.6 × 4.6 × 2.2 cm = 1.81” × 1.81” × 0.87”

With handwritten note from the Folch Collection (duplicates)

Maine

Grossular with Calcite
 

RG86G0: Crystals have the dodecahedral form and they are bright and sharp, standing on a Calcite matrix.
The specimen proceeds from the A. Santos collection and it passed to Folch collection in 1952.
Phippsburg, Sagadahoc County, Maine  USA

Specimen size: 5.3 × 4.7 × 3 cm = 2.09” × 1.85” × 1.18”

Main crystal size: 1.3 × 0.9 cm = 0.51” × 0.35”

With handwritten note & record from the Folch Collection (duplicates)
Grossular with Calcite.
Beryllonite
Beryllonite.
Beryllonite  

RA97F8: From the type locality for this rare species. While not well-defined (as is typical for Beryllonite) one can see the faces of the crystal, which is notable for its transparency. A floater.
Stoneham, Oxford County, Maine  USA (±1965)

Specimen size: 2.1 × 1.8 × 1 cm = 0.83” × 0.71” × 0.39”

With handwritten note & record from the Folch Collection (duplicates)

Type locality

Massachusetts

Datolite
 

RD16M2: Very uncommon locality not well represented in collections. Group of well defined Datolite crystals, with a light green color and good luster for the species. The specimen was from the former Scott J. Williams collection and we’ll send this label, which contains some handwritten notes from Mr. Folch, to the buyer.
Hampden Quarry, West Springfield, Hampden County, Massachusetts  USA (±1961)

Specimen size: 4.4 × 3.8 × 3.6 cm = 1.73” × 1.50” × 1.42”

Main crystal size: 3.7 × 2 cm = 1.46” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Datolite.

Michigan

Copper
Copper.
 

RP56G0: In the group, the crystals show especially sharp crystal faces. The surface of the faces had resisted the passage of time and they are practically free of any alteration.
Lake Superior, Keweenaw County, Michigan  USA

Specimen size: 2.6 × 1.7 × 1.5 cm = 1.02” × 0.67” × 0.59”

With handwritten note from the Folch Collection (duplicates)

Montana

Enargite with Pyrite
 

RE36G0: A classic specimen. Prisms of Enargite contrast with complex crystals of Pyrite showing clearly the octahedron and pyritohedron faces.
Folch purchased the specimen directly in Butte, Montana, in 1955.
Butte, Butte District, Silver Bow County, Montana  USA (±1955)

Specimen size: 3.2 × 3.1 × 2 cm = 1.26” × 1.22” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Enargite with Pyrite.
Enargite with Pyrite
Enargite with Pyrite.
 

RT36G0: The prisms of Enargite, very bright, contrast with octahedral crystals of Pyrite with a modest development of pyritohedron faces.
Folch purchased the specimen directly in Butte, Montana, in 1955.
Butte, Butte District, Silver Bow County, Montana  USA (±1955)

Specimen size: 3.5 × 3.3 × 2 cm = 1.38” × 1.30” × 0.79”

With handwritten note & record from the Folch Collection (duplicates)
Enargite with Pyrite
 

RR14K9: Group of prismatic crystals with well defined faces and edges and good luster. On matrix with small octahedral Pyrite crystals.
Butte, Butte District, Silver Bow County, Montana  USA

Specimen size: 4.5 × 3.4 × 2.5 cm = 1.77” × 1.34” × 0.98”

Main crystal size: 1.0 × 1.0 cm = 0.39” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Enargite with Pyrite.
Enargite with Pyrite and Quartz
Enargite with Pyrite and Quartz. Enargite with Pyrite and Quartz.
 

RE27R6: A U.S. classic with sharp prismatic crystals of Enargite, bright and with excellent terminations. On matrix, with Pyrite and Quartz.
Butte, Butte District, Silver Bow County, Montana  USA

Specimen size: 6 × 5.2 × 3.4 cm = 2.36” × 2.05” × 1.34”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Nevada

Olivenite with Pitticite
Olivenite with Pitticite  

RX92M0: Classic acicular olive green Olivenite crystals, very bright, and on a rocky matrix with Pitticite. This specimen is accompanied by a handwritten Folch label and the collection card (Nr. 7344).
Majuba Hill Mine, Antelope District, Pershing County, Nevada  USA (±1961)

Specimen size: 5.8 × 3.3 × 2.8 cm = 2.28” × 1.30” × 1.10”

Main crystal size: 0.4 × 0.1 cm = 0.16” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)
Olivenite with Pitticite.
Olivenite with Pitticite.
Getchellite with Realgar and Orpiment
Getchellite with Realgar and Orpiment. Getchellite with Realgar and Orpiment.
Getchellite with Realgar and Orpiment  

RQ61AE6: Masses of partial crystals and foliation surfaces of Getchellite that have a very intense vermillion color. They are on matrix with crystalline Realgar that has a more bloody red color, and with radial leafy Orpiment aggregates.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Getchell Mine, Adam Peak, Potosi District, Osgood Mountains, Humboldt County, Nevada  USA (±1976)

Specimen size: 6.8 × 5.8 × 4 cm = 2.68” × 2.28” × 1.57”

Type locality

With handwritten note from the Folch Collection (duplicates)
Axinite-(Mn)
Axinite-(Mn)  

RQ16M5: The crystal, from an uncommon locality, is on matrix and, even being poorly defined, it is of the species Axinite-(Mn), considerably less common than Axinite-(Fe).
The specimen is with a label from John S. Albanese, that will be sent to the buyer.
Luning area, Mineral County, Nevada  USA

Specimen size: 5.1 × 4.2 × 2.6 cm = 2.01” × 1.65” × 1.02”

With handwritten note from the Folch Collection (duplicates)
Axinite-(Mn).

New Hampshire

Herderite
Herderite.
Herderite  

RE67F8: A rarity. The crystal, even though it is not well terminated on the rear, is well developed and is quite large for the locality, which in turn is a classic one for US mineralogy. It is a floater.
Rumney, Grafton County, New Hampshire  USA (±1967)

Specimen size: 3 × 2 × 1.5 cm = 1.18” × 0.79” × 0.59”

With handwritten note & record from the Folch Collection (duplicates)

New Jersey

Datolite with Quartz and Pectolite
Datolite with Quartz and Pectolite  

RB64N4: Group of well defined, bright crystals of good color with fibrous aggregates of Pectolite on the back of the piece. It is from a classic American locality.
The sample is with the label of John S. Albanese, (Union, New Jersey) that we'll send to the buyer.
Woodland Park, Passaic County, New Jersey  USA

Specimen size: 4.2 × 3.9 × 2.2 cm = 1.65” × 1.54” × 0.87”

Main crystal size: 0.8 × 0.5 cm = 0.31” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Datolite with Quartz and Pectolite. Datolite with Quartz and Pectolite.
Datolite
Datolite.
Datolite  

RH63M2: Group of well defined Datolite crystals, very rich in faces, with a light green color and huge size for the locality, a classic for the species.
Woodland Park, Passaic County, New Jersey  USA

Specimen size: 5.4 × 3.7 × 2.1 cm = 2.13” × 1.46” × 0.83”

Main crystal size: 2.9 × 1.7 cm = 1.14” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Datolite with Stilbite-Ca
Datolite with Stilbite-Ca  

RM12AB7: Aggregates of short and flattened Datolite crystals with very well defined faces and edges. They are translucent, very bright, and with a pale green color and are on matrix and partially coated by small, white, laminar and clear Stilbite-Ca crystals. An American classic.
Paterson, Passaic County, New Jersey  USA

Specimen size: 7.2 × 7.2 × 3.9 cm = 2.83” × 2.83” × 1.54”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Datolite with Stilbite-Ca. Datolite with Stilbite-Ca.
Datolite with Chalcopyrite
Datolite with Chalcopyrite. Datolite with Chalcopyrite.
Datolite with Chalcopyrite  

RF56K0: Group of crystals with very sharp faces and edges of green color deeper than usual on the samples from this locality, classic for the species. On the surface of Datolite there are small crystals of Chalcopyrite.
Upper New Street Quarry, Paterson, Passaic County, New Jersey  USA (±1965)

Specimen size: 8.3 × 6.2 × 4.1 cm = 3.27” × 2.44” × 1.61”

Main crystal size: 1.8 × 1 cm = 0.71” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Rhodonite
Rhodonite  

RA26H7: Group of prismatic crystals of very well defined faces and edges and a good color, locally with octahedral crystals of Franklinite. Specimens like this are very hard to find.
Franklin, Franklin Mining District, Sussex County, New Jersey  USA (±1970)

Specimen size: 9.3 × 5 × 5.5 cm = 3.66” × 1.97” × 2.17”

Main crystal size: 2.9 × 0.8 cm = 1.14” × 0.31”

With record from the Folch Collection (duplicates)
Rhodonite.
Rhodonite.
Willemite (Troostite)
Willemite (Troostite).
Willemite (Troostite)  

RM61N4: Very well defined, floater and doubly terminated crystal that has good color. An American classic.
Franklin, Franklin Mining District, Sussex County, New Jersey  USA

Specimen size: 2.5 × 2.2 × 1.6 cm = 0.98” × 0.87” × 0.63”

With handwritten note from the Folch Collection (duplicates)

Intense fluorescence short UV & fluorescent long UV
Zincite with Franklinite and Willemite
Zincite with Franklinite and Willemite  

RQ14T8: Crystalline and nodular growths typical of the Zincite samples from Franklin. They have a very deep red color, are bright and are with octahedral crystals of Franklinite and with Willemite.
The sample is with a label from Siber+Siber with handwritten notes of Folch that we’ll send to the buyer.
Franklin, Franklin Mining District, Sussex County, New Jersey  USA (±1970)

Specimen size: 4.9 × 4.3 × 6 cm = 1.93” × 1.69” × 2.36”

With handwritten note from the Folch Collection (duplicates)

Willemite very fluorescent long & short UV
Zincite with Franklinite and Willemite. Front
Front
Zincite with Franklinite and Willemite. Side
Side

New Mexico

Hewettite on Gypsum
Hewettite on Gypsum.
 

RJ36F8: A superb formation of fibrous crystals that have hints of gold and bronze and are on gypsum. Collected by Sr. Folch in October 1959.
Homestake Mine, Ambrosia Lake area, Grants District, McKinley County, New Mexico  USA (1959)

Specimen size: 4.4 × 4.1 × 1.9 cm = 1.73” × 1.61” × 0.75”

With handwritten note & record from the Folch Collection (duplicates)
Linarite with Quartz
 

RF11M2: From one of the classic localities for the species. Concretions and small flattened crystals (in the vug on the back side of the specimen) with an intense and characteristic blue color, all on a Quartz matrix.
Bingham, Hansonburg District, Socorro County, New Mexico  USA (±1959)

Specimen size: 5.3 × 3.2 × 1.8 cm = 2.09” × 1.26” × 0.71”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Linarite with Quartz. Front
Front
Linarite with Quartz. Rear detail
Rear detail

New York

Dravite
Dravite.
 

RH6F8: This one is really for specialists. One of the crystals of Dravite from St Lawrence County. The specimen is, obviously, not that appealing as not all the faces have grown fully. But it is part of mineralogical history.
The specimen has been photographed and published in the magazine ‘Paragénesis’, number 01/2020, page 60
St. Lawrence County, New York  USA (±1980)

Specimen size: 2 × 1.7 × 1.7 cm = 0.79” × 0.67” × 0.67”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Uvite (Series)
Uvite (Series)  

RZ62M0: This crystal, from a classic locality from the New York state, is formed by a short prism and the terminal flattened rhombohedron faces, which are well defined and show a good luster. Although it looks damaged in two places, one of them is a natural hole with crystal faces inside. The other one effectively is a ding.
This specimen was bought by Mr. Folch in 1959 and it is accompanied by a handwritten label and the collection card (Nr. 5060)

Pierrepont, St. Lawrence County, New York  USA (±1959)

Specimen size: 3.8 × 3.5 × 3.2 cm = 1.50” × 1.38” × 1.26”

With handwritten note & record from the Folch Collection (duplicates)
Uvite (Series). Front
Front
Uvite (Series). Rear
Rear

North Carolina

Zircon
Zircon.
 

RT8N4: Small but very well defined and doubly terminated crystal, formed by the faces of the prism and of a dipyramid. We apologize for not offering more information about the locality. The original manuscript label simply indicates North Carolina.
-----  

Specimen size: 0.8 × 0.6 × 0.5 cm = 0.31” × 0.24” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Intense fluorescence short UV & fluorescent long UV

Oklahoma

Sphalerite with Pyrite and Marcasite
Sphalerite with Pyrite and Marcasite  

RX96P8: From a classic American locality. The Sphalerite crystals are complex with deep red color and good transparency. These crystals were named "Ruby Jack". They are implanted on a very thin matrix and are partially coated by sharp, well defined, crystals of Marcasite. Folch's records indicate that the sample was acquired in Tucson in 1959.
Picher Field, Tri-State District, Ottawa County, Oklahoma  USA (±1959)

Specimen size: 10.8 × 8.3 × 2.9 cm = 4.25” × 3.27” × 1.14”

Main crystal size: 3.6 × 2.9 cm = 1.42” × 1.14”

With handwritten note & record from the Folch Collection (duplicates)
Sphalerite with Pyrite and Marcasite.
Sphalerite with Pyrite and Marcasite. Sphalerite with Pyrite and Marcasite.

MEXICO - CANADA


Mexico

Axinite-(Fe)
Axinite-(Fe).
Axinite-(Fe)  

RA58N4: The locality, due to its rarity, is the most notable about this piece which has an excellent color.
With a label from Shale's (Los Angeles) that we'll send to the buyer.
Valle de la Trinidad, Municipio Ensenada, Baja California  Mexico

Specimen size: 5.7 × 3.5 × 1 cm = 2.24” × 1.38” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Vesuvianite
 

RL10P8: The single crystal is better defined than usual for this classic Mexican locality. Its morphology, perfectly distinct, consists of two prisms and a dipyramid, incomplete in the lower part of the crystal.
Sierra de las Cruces, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico (±1970)

Specimen size: 2.6 × 1.5 × 1.7 cm = 1.02” × 0.59” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Vesuvianite.
Vesuvianite
Vesuvianite.
 

RK60M9: Floater and doubly terminated crystal of very well defined faces and edges. It is formed by two prisms 45 degrees to each other, and a dipyramid.
Sierra de las Cruces, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico (±1970)

Specimen size: 2.9 × 2.1 × 1.9 cm = 1.14” × 0.83” × 0.75”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Vesuvianite
 

RC63P8: A single equidimensional Vesuvianite crystal of yellowish brown color. Its cubical aspect is due to two short prisms and a dipyramid plus the terminal pinacoid. On the surface of some of its faces there are small groups of dodecahedral crystals of Grossular.
Sierra de las Cruces, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico

Specimen size: 3.1 × 3 × 3.1 cm = 1.22” × 1.18” × 1.22”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Vesuvianite.
Vesuvianite with Grossular
Vesuvianite with Grossular. Front
Front
Vesuvianite with Grossular. Top
Top
 

RN16K9: A group of Vesuvianite crystals from a classic locality, with well defined faces and edges, most of them doubly terminated. They are formed by two prisms and a pyramid on the terminal faces.
Sierra de las Cruces, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico (±1970)

Specimen size: 4.8 × 3.5 × 2.8 cm = 1.89” × 1.38” × 1.10”

Main crystal size: 2.8 × 1.6 cm = 1.10” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Grossular
 

RK16G2: A group of dodecahedral crystals perfectly defined, with a good luster and a color quite different than usual for the Grossular from this locality.
Sierra de las Cruces, Sierra Mojada mining district, Municipio Sierra Mojada, Coahuila (Coahuila de Zaragoza)  Mexico

Specimen size: 3.1 × 3 × 2.9 cm = 1.22” × 1.18” × 1.14”

With handwritten note from the Folch Collection (duplicates)
Grossular.
Polybasite with Chalcopyrite and Quartz
Polybasite with Chalcopyrite and Quartz. Front
Front
Polybasite with Chalcopyrite and Quartz. Top
Top
Polybasite with Chalcopyrite and Quartz  

RD46H3: Group of very sharp laminar crystals with very marked triangular growth figures on the pinacoid faces. Chalcopyrite growths and small white crystals of Quartz enhance the esthetics of the specimen.
The specimen is accompanied by a Lidstrom’s label, and we will give the buyer also a copy of the analysis of the Polybasite.
Chihuahua  Mexico

Specimen size: 2.8 × 2.7 × 2.4 cm = 1.10” × 1.06” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Pyrrhotite with Dolomite
Pyrrhotite with Dolomite  

RA46L9: Group of prismatic Pyrrhotite crystals with excellent terminations, partially covered by small Dolomite crystals.
The piece is accompanied by a handwritten label and a card (nr. 9812) from the Folch Collection, where we can read that it was purchased in 1966.
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico (1966)

Specimen size: 12.6 × 7.4 × 4.4 cm = 4.96” × 2.91” × 1.73”

Main crystal size: 1.5 × 1.4 cm = 0.59” × 0.55”

With handwritten note & record from the Folch Collection (duplicates)
Pyrrhotite with Dolomite.
Pyrrhotite with Dolomite.
Wulfenite with Dolomite
Wulfenite with Dolomite.
Wulfenite with Dolomite  

RH6M3: Two huge size Wulfenite crystals with a toasted honey color on the edges and yellow pinacoidal faces. With a small matrix.
This sample was purchased from John S. Albanese, of New Jersey.The piece is accompanied by a handwritten label with the notes from Mr. Folch.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 3.3 × 3.1 × 2.4 cm = 1.30” × 1.22” × 0.94”

Main crystal size: 2.9 × 2.9 cm = 1.14” × 1.14”

With handwritten note from the Folch Collection (duplicates)
Wulfenite with Calcite
 

RJ46H8: The crystal is very thick, almost prismatic, and has very well-defined faces and edges. Its color is very good and the aerial position of the crystal on the matrix make the sample very esthetic.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico (1960)

Specimen size: 4.5 × 4.3 × 4 cm = 1.77” × 1.69” × 1.57”

Main crystal size: 1.1 × 0.8 cm = 0.43” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Wulfenite with Calcite. Front
Front
Wulfenite with Calcite. Rear
Rear
Wulfenite with Calcite. Top
Top
Wulfenite
Wulfenite. Wulfenite.
Wulfenite  

RX96F8: The crystals, with perfect color and brilliance, have a elongated form that is not common among examples from Los Lamentos.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 6.3 × 4.7 × 4 cm = 2.48” × 1.85” × 1.57”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Wulfenite
 

RX37J1: Group of bipyramidal acute crystals, much of them doubly terminated, very well defined and with intense deep orange color. Although the locality on original the label is Tiger, we authenticated the specimen as coming from Los Lamentos, so we give this last locality as correct.
We will send the label of the sample, from the Ernest Windisch collection (World Wide Minerals), Philipsburg, Québec, to the buyer.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 7.3 × 4.4 × 3.5 cm = 2.87” × 1.73” × 1.38”

Main crystal size: 0.8 × 0.3 cm = 0.31” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Wulfenite. Wulfenite.
Wulfenite with Calcite
Wulfenite with Calcite. Wulfenite with Calcite.
 

RQ86S7: Prismatic crystals quite more elongated than usual on the samples from Los Lamentos, with neat pinacoidal terminations, very bright and an orange color with darker areas in the center of the prism. With Calcite and on matrix.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico (±1964)

Specimen size: 10.1 × 6.7 × 2 cm = 3.98” × 2.64” × 0.79”

Main crystal size: 1.1 × 0.5 cm = 0.43” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Wulfenite with Calcite
Wulfenite with Calcite  

RH94M9: Group of thick tabular crystals that have very well defined faces and edges, excellent luster and a very deep orange color. On Limonite matrix.
The specimen is accompanied by a Lidstrom’s label.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico (±1968)

Specimen size: 10.8 × 7.8 × 4.5 cm = 4.25” × 3.07” × 1.77”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Wulfenite with Calcite.
Wulfenite with Calcite.
Wulfenite with Calcite
Wulfenite with Calcite. Wulfenite with Calcite.
Wulfenite with Calcite  

RC52H3: Group of tabular crystals very sharp, with excellent color and luster and contrasting with a white matrix.
We offer a label of the first supplier, Barney Goff, from New Hope, with autographed notes of Sr. Folch.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico (±1973)

Specimen size: 11 × 7 × 4 cm = 4.33” × 2.76” × 1.57”

Main crystal size: 1.3 × 1.3 cm = 0.51” × 0.51”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Wulfenite with Vanadinite (variety endlichite)
 

RA16H9: On this sample, a classic, we specially note the quantity of tabular crystals, their color and that they are free of damage. The coverage of the matrix is a surface of small crystals of Endlichite a highly arsenical variety of Vanadinite.
Erupción Mine (Ahumada Mine), Los Lamentos Mountain Range, Municipio Ahumada, Chihuahua  Mexico

Specimen size: 12 × 8.5 × 9.5 cm = 4.72” × 3.35” × 3.74”

Main crystal size: 1.4 × 1.3 cm = 0.55” × 0.51”

With handwritten note from the Folch Collection (duplicates)
Wulfenite with Vanadinite (variety endlichite). Front
Front
Wulfenite with Vanadinite (variety endlichite). Side
Side
Wulfenite with Vanadinite (variety endlichite). <br>

Vanadinite with Calcite
Vanadinite with Calcite. Vanadinite with Calcite.
Vanadinite with Calcite  

RJ14V5: Prismatic crystals with very well defined faces and edges, most of them doubly terminated, a clear cream color, on a druse of rhombohedral crystals of Calcite.
The sample is with a label and the collection card that we'll send to the buyer.
Mina San Carlos (Mina Apex), San Carlos, Manuel Benavides, Chihuahua  Mexico (±1955)

Specimen size: 7.8 × 6.7 × 3.3 cm = 3.07” × 2.64” × 1.30”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With handwritten note & record from the Folch Collection (duplicates)
Vanadinite with Calcite
Vanadinite with Calcite  

RR27S7: Spindled prismatic crystals of Vanadinite. They are very acute and most of them have hollowed growths, their color is reddish brown and they are with Calcite on matrix. It is an historical sample, that comes from the Elbert Barron collection, as is shown on the original label and collection card, and it was purchased by Folch at El Paso, in 1959.
Mina San Carlos (Mina Apex), San Carlos, Manuel Benavides, Chihuahua  Mexico (±1959)

Specimen size: 8.2 × 6.2 × 5.2 cm = 3.23” × 2.44” × 2.05”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With handwritten note & record from the Folch Collection (duplicates)

Calcite minor fluorescence long & short UV
Vanadinite with Calcite. Vanadinite with Calcite.
Silver with Calcite
Silver with Calcite. Front
Front
Silver with Calcite. Rear
Rear
Silver with Calcite.
 

RE27G0: An esthetic specimen, very aerial, in which are some crystals are elongated and some of them show the twin plane clearly, in a Calcite matrix.
Sr. Folch purchased the specimen in 1962, but, as documentation explains, it was probably mined around 1910.
Batopilas, Andrés del Río District, Municipio Batopilas, Chihuahua  Mexico (±1910)

Specimen size: 5.9 × 3.5 × 3.3 cm = 2.32” × 1.38” × 1.30”

Main crystal size: 1.7 × 0.2 cm = 0.67” × 0.08”

With handwritten note & record from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Adamite
Adamite  

RB63P8: "Bow tie" growth of elongated crystals with clear color zoning, white at the center and a beautiful yellow elsewhere. The sample has an extraordinary fluorescence, very much stronger than usual.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.3 × 2.5 × 3.4 cm = 1.69” × 0.98” × 1.34”

With handwritten note from the Folch Collection (duplicates)

Extremely fluorescent long & short UV
Adamite.
Adamite
Adamite. Front
Front
Adamite. Side
Side
 

RD76H7: The color and the esthetics of the specimen are very good. Crystals, small and very bright, form spheroidal growths on a matrix of Limonite.
Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.7 × 4.2 × 3.2 cm = 1.85” × 1.65” × 1.26”

With record from the Folch Collection (duplicates)

Extremely fluorescent long & short UV
Adamite on Limonite
Adamite on Limonite  

RV13L9: Group of well defined and very bright Adamite crystals. A gentle yellow to greenish color, on a Limonite matrix.
The specimen is with a commercial label of John S. Albanese, from New Jersey. We will send the label to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 4.8 × 3.5 × 2.8 cm = 1.89” × 1.38” × 1.10”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Very fluorescent long & short UV
Adamite on Limonite. Adamite on Limonite.
Adamite
Adamite.
 

RT36H0: A pleasant group of crystals of excellent color and luster and completely undamaged, on the Limonite matrix typical of Mapimí specimens.
Mapimí, Municipio Mapimí, Durango  Mexico

Specimen size: 5 × 3.5 × 3.7 cm = 1.97” × 1.38” × 1.46”

With handwritten note from the Folch Collection (duplicates)

Extremely fluorescent long & short UV
Adamite (variety manganoan)
Adamite (variety manganoan)  

RA14V1: The crystals are more isolated than usual for samples from Mapimí. They are on limonite matrix and have a very intense color and luster (but with a little bit less contrast than in the photo).
The sample is with a card from the Folch collection (number 13015) that we'll send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico (±1980)

Specimen size: 9.3 × 6.2 × 5.2 cm = 3.66” × 2.44” × 2.05”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Adamite (variety manganoan). Adamite (variety manganoan).
Fluorapatite
Fluorapatite.
 

RD56F8: A classic crystal with excellent color and transparency, and on matrix. Folch bought it in Cerro del Mercado, Durango, in September 1956.
Mina Cerro de Mercado, Cerro de los Remedios, Victoria de Durango, Municipio de Durango, Durango  Mexico (1956)

Specimen size: 4.7 × 3.6 × 3.2 cm = 1.85” × 1.42” × 1.26”

Main crystal size: 2.2 × 1.1 cm = 0.87” × 0.43”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Mimetite with Calcite
 

RK63J1: Prismatic crystals with very acute pyramidal terminations. Faces and edges are very well defined and the transparency, luster and color (deep yellow) are notable on a matrix of small crystals of pinkish Calcite.
Velardeña Distrito, Durango  Mexico

Specimen size: 4.3 × 3.6 × 1.7 cm = 1.69” × 1.42” × 0.67”

Main crystal size: 0.8 × 0.2 cm = 0.31” × 0.08”

With handwritten note from the Folch Collection (duplicates)

Calcite minor fluorescence long & short UV
Mimetite with Calcite.
Quartz (variety amethyst)
Quartz (variety amethyst).
 

FK46K0: Classic group of crystals from this locality, in this case very transparent and with an excellent color, on a small matrix. The sample is very esthetic.
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico

Specimen size: 5.3 × 4.5 × 4.2 cm = 2.09” × 1.77” × 1.65”

Main crystal size: 3.6 × 1.2 cm = 1.42” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety amethyst) with Quartz and Epidote
Quartz (variety amethyst) with Quartz and Epidote  

RC86V0: Group on matrix of transparent crystals with good size, color and luster. With color zoning, more concentrated on the terminations. Surely one of the first known samples from Las Vigas, as the old label of Lidstrom’s indicates. It reflects the uncertainty of the locality at the time because the original label says “Guerrero” , with a later correction of Folch, that locates the sample properly in Veracruz. We’ll send the Lidstrom's label to the buyer of the specimen.
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico (±1969)

Specimen size: 7.6 × 6.8 × 3.7 cm = 2.99” × 2.68” × 1.46”

Main crystal size: 4 × 1.7 cm = 1.57” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety amethyst) with Quartz and Epidote. Front
Front
Quartz (variety amethyst) with Quartz and Epidote. Rear
Rear
Quartz (variety amethyst)
Quartz (variety amethyst). Quartz (variety amethyst).
 

RC99P8: Probably this is one of the first amethyst samples from Las Vigas because the original label indicates that it was acquired in Tucson in 1968 and (erroneously) 'Guerrero' as the locality. It is a very aerial group of crystals, some of them doubly terminated, with a very well marked color zoning. Luster and transparency are excellent.
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave)  Mexico (±1968)

Specimen size: 9 × 5.7 × 2.9 cm = 3.54” × 2.24” × 1.14”

Main crystal size: 2.4 × 1.2 cm = 0.94” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Calcite on Quartz
 

RR46G0: Excellent representation of Calcite from Guanajuato. The specimen is especially esthetic due to the aerial position of flat rhombohedral crystals, with a lenticular habit, on a matrix of lightly violet Quartz.
Guanajuato, Guanajuato  Mexico (±1967)

Specimen size: 5.7 × 5.3 × 3.6 cm = 2.24” × 2.09” × 1.42”

Main crystal size: 3.3 × 3.1 cm = 1.30” × 1.22”

With handwritten note & record from the Folch Collection (duplicates)

Calcite very fluorescent long & short UV
Calcite on Quartz.
Clinozoisite with Quartz and Garnet
Clinozoisite with Quartz and Garnet. Clinozoisite with Quartz and Garnet.
Clinozoisite with Quartz and Garnet  

RF6T5: Radial aggregates of acicular crystals with intense pink color, a shade that is well known but uncommon for the species. They are on a matrix with Quartz and garnet (probably Grossular).
The sample is with its Folch collection card and the Burminco (George Burnham) label that we'll send to the buyer.
Álamos, Municipio de Álamos, Sonora  Mexico

Specimen size: 7.4 × 5.5 × 4 cm = 2.91” × 2.17” × 1.57”

With handwritten note & record from the Folch Collection (duplicates)
Tellurite with Quartz
Tellurite with Quartz  

TK26J1: Excellent miniature of this rare tellurium oxide. It is in groups of deep yellow acicular crystals in vugs on a Quartz matrix.
We will send the label of the sample, from Scott Williams Mineral Company, Scottsdale, Arizona, to the buyer.
Moctezuma Mine, Moctezuma, Sonora  Mexico

Specimen size: 2.9 × 3.1 × 2.4 cm = 1.14” × 1.22” × 0.94”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Tellurite with Quartz.
Smithsonite
Smithsonite. Smithsonite.
Smithsonite  

RD76V5: Botryoidal aggregate with intense and deep pink-mauve color and good luster. It is coating a rocky matrix.
The sample is with a label and the collection card that we'll send to the buyer.
Mina La Suerte, Choix, Sinaloa  Mexico (±1972)

Specimen size: 7.8 × 7.1 × 2.4 cm = 3.07” × 2.80” × 0.94”

With handwritten note & record from the Folch Collection (duplicates)
Stibiconite
 

RE27S7: A Stibiconite pseudomorph after a Stibnite crystal, whose faces and edges are quite better defined than usual on the samples from Real de Catorce, and it has a more “fresh”, less rough, appearance than usual.
Real de Catorce (Catorce), Catorce Mountains, Municipio Catorce, San Luis Potosí  Mexico

Specimen size: 14.8 × 2.5 × 1.8 cm = 5.83” × 0.98” × 0.71”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Stibiconite. Front
Front
Stibiconite. Rear
Rear
Stibiconite. Top
Top

Canada

Diopside with Calcite
Diopside with Calcite. Front
Front
Diopside with Calcite. Top
Top
Diopside with Calcite  

RA16M3: Group of light green prismatic Diopside crystals on a Calcite matrix and with Mica crystals.
This sample was from Scott J. Williams of Scottsdale (Arizona). The piece is accompanied by the Williams label and card Nr. 5244 from the Folch Collection which we’ll send to the buyer.
Bird's Creek, Bancroft district, Hastings County, Ontario  Canada (±1960)

Specimen size: 5.1 × 4.9 × 3.1 cm = 2.01” × 1.93” × 1.22”

Main crystal size: 2.4 × 1.9 cm = 0.94” × 0.75”

With handwritten note & record from the Folch Collection (duplicates)

Calcite minor fluorescence long & short UV
Rhodochrosite with Analcime and Aegirine
 

RM14M0: Excellent miniature. Group of rhombohedral Rhodochrosite crystals, one of them dominant, with good color and luster for this locality. With small white Analcime crystals and an Aegirine crystal centered in one face of the main Rhodochrosite crystal.
Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec  Canada (±1979)

Specimen size: 2.2 × 1.9 × 1.7 cm = 0.87” × 0.75” × 0.67”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Rhodochrosite with Analcime and Aegirine.

NORTHERN SPAIN


Gahnite with Quartz
Gahnite with Quartz.
Gahnite with Quartz.
Gahnite with Quartz  

RE6K9: Well defined blue-grayish octahedral crystals on a Quartz matrix.
Victoria Mine, Arrés, Vall d'Aran, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 5.0 × 4.0 × 3.4 cm = 1.97” × 1.57” × 1.34”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With handwritten note & record from the Folch Collection (duplicates)
Cobaltoan Calcite on Calcite with Aurichalcite inclusions (variety zeiringite)
 

RC11Y9: Cobaltoan Calcite core with a very intense and deep mallow color included in a very pale green banded Calcite whose color (variety zeiringite) is due to the presence of Aurichalcite inclusions.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 4.9 × 4 × 4.4 cm = 1.93” × 1.57” × 1.73”

With handwritten note from the Folch Collection (duplicates)

Calcite minor fluorescence long & short UV
Cobaltoan Calcite on Calcite with Aurichalcite inclusions (variety zeiringite). Front
Front
Cobaltoan Calcite on Calcite with Aurichalcite inclusions (variety zeiringite). Side
Side
Cobaltoan Calcite
Cobaltoan Calcite. Front
Front
Cobaltoan Calcite. Rear
Rear
 

RJ47W6: Translucent polished section with banded growths and nucleus of very intense color. The sample has on some of its sides the original matrix that contrasts with the deep color of the Calcite.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 11.2 × 11 × 1.8 cm = 4.41” × 4.33” × 0.71”

Minor fluorescence long & short UV

With handwritten note from the Folch Collection
Cobaltoan Calcite with Calcite and Aurichalcite
 

RG47W6: Botryoidal growths, on matrix, of translucent cobaltoan Calcite. It has a very uniform, intense and deep color and it is with yellowish globular growths of Calcite and thin surfaces of pale greenish Aurichalcite.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 11.7 × 11.4 × 7.6 cm = 4.61” × 4.49” × 2.99”

Main crystal size: 0.8 × 0.3 cm = 0.31” × 0.12”

Calcite fluorescent long & short UV

With handwritten note from the Folch Collection
Cobaltoan Calcite with Calcite and Aurichalcite. Cobaltoan Calcite with Calcite and Aurichalcite.
Cobaltoan Calcite with Calcite and Aurichalcite. Cobaltoan Calcite with Calcite and Aurichalcite.
Cobaltoan Calcite
Cobaltoan Calcite. Front
Front
Cobaltoan Calcite. Rear
Rear
Cobaltoan Calcite  

RR27V1: Banded growths of cobaltoan Calcite with a very intense color alternating with fine bands of white and yellowish Calcite. The sample, in spite its fine surface, hasn't been acid-etched, as its rough surfaces in most areas and the existence of easily altered carbonates proves.
The sample is with a card from the Folch collection (number 2052) that we'll send to the buyer.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 13.5 × 10 × 6.5 cm = 5.31” × 3.94” × 2.56”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Cobaltoan Calcite
 

RC98Q5: Polished section with concretionary growths with excellent color, very deep. Though we don’t usually present polished samples, in this case we made an exception because of the unusual quality of the color of the Calcite and the collection of precedence, the mine (now totally abandoned and collapsed) was precisely exploited to obtain such pieces.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain (±1978)

Specimen size: 14.3 × 11.2 × 1.7 cm = 5.63” × 4.41” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Cobaltoan Calcite. Front
Front
Cobaltoan Calcite. Rear
Rear
Cobaltoan Calcite
Cobaltoan Calcite. Front
Front
Cobaltoan Calcite. Top
Top
Cobaltoan Calcite. Bottom
Bottom
Cobaltoan Calcite. Side
Side
Cobaltoan Calcite  

RB27AE6: Banded growths of cobaltoan Calcite with a very intense color alternating with fine bands of white and yellowish Calcite. The sample, in spite its fine surface, hasn't been acid-etched, as its rough surfaces in most areas and the existence of easily altered carbonates proves.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 14.4 × 9.1 × 5.6 cm = 5.67” × 3.58” × 2.20”

Fluorescence short UV & minor fluorescence long UV

With handwritten note from the Folch Collection (duplicates)
Cobaltoan Calcite
 

RA86Y9: Fine banded growths that alternate bands of very intense and deep color contrasting with others that have a very pale color. As a rarity, we note the presence of a small geode with very acute cobaltoan Calcite crystals, very rare for the locality.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 14.5 × 8.6 × 4.8 cm = 5.71” × 3.39” × 1.89”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Cobaltoan Calcite. Cobaltoan Calcite.
Cobaltoan Calcite.
Calcite with Aurichalcite inclusions (variety zeiringite)
Calcite with Aurichalcite inclusions (variety zeiringite). Front
Front
Calcite with Aurichalcite inclusions (variety zeiringite). Rear
Rear
 

RG12X8: Parallel banded growths of Calcite, very rich with oriented bluish-green Aurichalcite inclusions.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 9.2 × 5.8 × 5.3 cm = 3.62” × 2.28” × 2.09”

With handwritten note from the Folch Collection (duplicates)

Zoned fluorescence long & short UV
Aurichalcite on Calcite with Aurichalcite inclusions (variety zeiringite)
 

RE26Y9: Green microcrystalline Aurichalcite films on banded Calcite with a very slightly green color due to the presence of inclusions of the same Aurichalcite. A very uncommon sample, because well differentiated exposed Aurichalcite is very scarce for the locality.
Solita Mine, Peramea, Baix Pallars, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain

Specimen size: 12 × 9.4 × 3.3 cm = 4.72” × 3.70” × 1.30”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Aurichalcite on Calcite with Aurichalcite inclusions (variety zeiringite). Aurichalcite on Calcite with Aurichalcite inclusions (variety zeiringite).
Quartz with Pyrophyllite
Quartz with Pyrophyllite. Quartz with Pyrophyllite.
 

RC10T8: Crystals of quartz with parallel growths on their terminal areas, very bright and partially coated by small crystals of Pyrophyllite.
Prat d'en Mallol, Llavorsí, Comarca Pallars Sobirà, Lérida / Lleida, Catalonia / Catalunya  Spain (1963)

Specimen size: 9.4 × 6.9 × 6.4 cm = 3.70” × 2.72” × 2.52”

Main crystal size: 9.4 × 4.4 cm = 3.70” × 1.73”

With handwritten note from the Folch Collection (duplicates)

Pyrophyllite minor fluorescence long & short UV
Fluorite
 

RM14P1: Group of cubical crystals of sharp, very well defined, faces and edges of slightly greenish yellow color. The sample, with the edges areas more transparent than the central areas of the faces, is absolutely representative of this Catalan locality.
Matagalls Mine (Sant Marçal Mines), Sant Marçal, Viladrau, Comarca Osona, Gerona / Girona, Catalonia / Catalunya  Spain

Specimen size: 11.2 × 11 × 3.2 cm = 4.41” × 4.33” × 1.26”

Main crystal size: 2.7 × 1.7 cm = 1.06” × 0.67”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Fluorite. Fluorite.
Fluorite with Baryte and Quartz
Fluorite with Baryte and Quartz. Fluorite with Baryte and Quartz.
 

RF46X8: Aggregate of cubic Fluorite crystals that are bright, between transparent and translucent and have a clear green color and selective Quartz coatings on some of their faces. There also are some pink Baryte crystals on them. A classic of Spanish mineralogy.
Matagalls Mine (Sant Marçal Mines), Sant Marçal, Viladrau, Comarca Osona, Gerona / Girona, Catalonia / Catalunya  Spain (±1960)

Specimen size: 16.3 × 15.5 × 3.8 cm = 6.42” × 6.10” × 1.50”

Main crystal size: 3 × 3 cm = 1.18” × 1.18”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Quartz (variety smoky) with Feldspar
Quartz (variety smoky) with Feldspar  

RF12AB7: Floater complete Quartz crystal, extraordinarily flat, with a very uncommon shape and bordered and partially coated by small crystals of an indeterminate Feldspar. The locality is very unusual.
La Roca del Vallès, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain

Specimen size: 10.4 × 6.2 × 1.1 cm = 4.09” × 2.44” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky) with Feldspar. Front
Front
Quartz (variety smoky) with Feldspar. Side
Side
Wulfenite (variety chillagite)
Wulfenite (variety chillagite).
 

RD10K9: Excellent miniature, very representative of this rare variety that is an intermediate member of the Wulfenite-Stolzite series. From a Catalan classic locality close to Barcelona. Crystals show a lenticular appereance.
Teresita Mine, Can Donadeu, Sant Fost de Campsentelles, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain

Specimen size: 2.3 × 2.1 × 0.8 cm = 0.91” × 0.83” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Wulfenite (variety chillagite)
 

RC59K9: Excellent miniature, very representative of this rare variety that is an intermediate member of the Wulfenite-Stolzite series. From a Catalan classic locality close to Barcelona. Crystals show a lenticular appearance.
Teresita Mine, Can Donadeu, Sant Fost de Campsentelles, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain

Specimen size: 2.4 × 2.0 × 1.4 cm = 0.94” × 0.79” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Wulfenite (variety chillagite).
Wulfenite (variety chillagite) with Baryte
Wulfenite (variety chillagite) with Baryte.
 

RB12M9: Thin laminar crystals of this rare variety of Wulfenite, rich in tungsten, that contrast with the white matrix of Baryte. The locality is a classic of Spanish mineralogy and the samples are very scarce.
Sant Fost de Campsentelles, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain

Specimen size: 2.7 × 2.1 × 1.7 cm = 1.06” × 0.83” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Wulfenite (variety chillagite)
 

RA60K9: Excellent miniature, very representative of this rare variety that is an intermediate member of the Wulfenite-Stolzite series. From a Catalan classic locality close to Barcelona. Crystals show a lenticular appereance.
Teresita Mine, Can Donadeu, Sant Fost de Campsentelles, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain

Specimen size: 3.4 × 2.3 × 1.2 cm = 1.34” × 0.91” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Wulfenite (variety chillagite).
Wulfenite (variety chillagite) on Baryte
Wulfenite (variety chillagite) on Baryte.
 

RP16M0: Laminar, very thin, crystals of this rare variety of Wulfenite (Chillagite is tungstenian wulfenite),enhanced by a white matrix. The locality is a classic of Spanish mineralogy.
Teresita Mine, Can Donadeu, Sant Fost de Campsentelles, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain (±1950)

Specimen size: 4.2 × 3.4 × 1.7 cm = 1.65” × 1.34” × 0.67”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Wulfenite (variety chillagite) with Fluorite and Galena
 

RZ9P1: Creamy beveled laminar crystals, some of them very well defined, of this very rare Wulfenite variety, rich in tungsten. The crystals contrast with a matrix of clear greenish Fluorite with nucleus of Galena.
Sant Fost de Campsentelles, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain (01/1955)

Specimen size: 7.8 × 5.9 × 4.3 cm = 3.07” × 2.32” × 1.69”

Main crystal size: 1.1 × 0.7 cm = 0.43” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Wulfenite (variety chillagite) with Fluorite and Galena. Wulfenite (variety chillagite) with Fluorite and Galena.
Octahedral Fluorite
Octahedral Fluorite. Octahedral Fluorite.
Octahedral Fluorite  

RD9AA2: Druse of very sharp octahedral crystals, translucent, with an intense green color and coating a granite matrix. A Spanish classic from a currently closed locality that only sporadically produces samples of this quality. Given to Sr. Folch by Ramón Brumós Albero, a well-known amateur mineralogist of the last century.
Berta Quarry, Can Domènech Hill, Roques Blanques Mountains, Sant Cugat del Vallès-El Papiol, Comarca Vallès Occidental / Baix Llobregat, Barcelona, Catalonia / Catalunya  Spain

Specimen size: 10.8 × 7.7 × 4.3 cm = 4.25” × 3.03” × 1.69”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

Fluorescent long & short UV
Cerussite with Galena
 

RC62P1: Very well defined twins of flat prismatic crystals whose color is between white and clear brown, and they are on a massive Galena matrix. We especially note that the mine is well documented on the label, which is unusual on most of the samples of the epoch.
Raimunda Mine, El Molar, Comarca Priorat, Tarragona, Catalonia / Catalunya  Spain (±1923)

Specimen size: 6.3 × 5.3 × 3.8 cm = 2.48” × 2.09” × 1.50”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Cerussite with Galena. Cerussite with Galena.
Cerussite with Galena
Cerussite with Galena. Cerussite with Galena.
 

RB63P1: Very well defined twins of flat prismatic crystals whose color is between white and clear brown, and they are on a massive Galena matrix. We especially note that the mine is well documented on the label, which is unusual on most of the samples of the epoch.
Raimunda Mine, El Molar, Comarca Priorat, Tarragona, Catalonia / Catalunya  Spain (±1923)

Specimen size: 7 × 3.6 × 5.1 cm = 2.76” × 1.42” × 2.01”

Main crystal size: 0.7 × 0.2 cm = 0.28” × 0.08”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Cerussite with Galena
 

FQ11K0: The sample, mined in 1959, forms groups of twinned crystals from the old oxidation zone of this historic and classic Spanish locality. The matrix is basically of massive Galena and Cerussite with Limonite.
Raimunda Mine, El Molar, Comarca Priorat, Tarragona, Catalonia / Catalunya  Spain (1959)

Specimen size: 7.5 × 4.5 × 4.4 cm = 2.95” × 1.77” × 1.73”

Main crystal size: 0.5 × 0.3 cm = 0.20” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long UV & minor fluorescence short UV
Cerussite with Galena. Front
Front
Cerussite with Galena. Top
Top
Cerussite with Galena.
Cerussite with Galena
Cerussite with Galena. Cerussite with Galena.
 

RK64P1: Butterfly and cyclic twins of well defined crystals on a massive Galena matrix. We especially note that the mine is well documented on the label, which is unusual on most of the samples of the epoch. The label notes the year of the find of the specimen - 1923.
Raimunda Mine, El Molar, Comarca Priorat, Tarragona, Catalonia / Catalunya  Spain (±1923)

Specimen size: 7.9 × 7.5 × 5.2 cm = 3.11” × 2.95” × 2.05”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Dolomite
Dolomite  

RZ46R6: Aerial group of translucent and bright rhombohedral crystals. The Folch collection records note that is was collected by F. Coma October 1959.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain

Specimen size: 5.8 × 3.8 × 3.9 cm = 2.28” × 1.50” × 1.54”

Main crystal size: 3.1 × 2.3 cm = 1.22” × 0.91”

With handwritten note & record from the Folch Collection (duplicates)
Dolomite.
Dolomite
Dolomite.
 

RQ10X8: Aggregate of Sharp, white rhombohedral Dolomite crystals. They are translucent and have very well marked phantom growths.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain

Specimen size: 6.2 × 5.8 × 4.5 cm = 2.44” × 2.28” × 1.77”

Main crystal size: 4 × 3 cm = 1.57” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Dolomite
 

RQ46Q5: Twinned rhombohedral crystals with the usual quality for Eugui, with very well defined faces and edges, from transparent to translucent and very bright. A Spanish classic.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1959)

Specimen size: 6.9 × 4.4 × 2.7 cm = 2.72” × 1.73” × 1.06”

Main crystal size: 3.4 × 3.3 cm = 1.34” × 1.30”

With handwritten note from the Folch Collection (duplicates)
Dolomite. Front
Front
Dolomite. Top
Top
Dolomite
Dolomite.
 

RP17F9: The crystals of this aggregate have great clarity and brightness, with inner iridescent inclusions. The interpenetration twin is apparent in different zones on the specimen.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (1968)

Specimen size: 7 × 5 × 3.7 cm = 2.76” × 1.97” × 1.46”

With handwritten note from the Folch Collection (duplicates)
Twinned Dolomite
Twinned Dolomite  

FY47K0: Twin of two rhombohedral crystals of very well defined faces and edges, bright and translucent. The original label indicates that it was a gift from Carlos Díaz de Mauriño, from Pamplona, in 1967, to Sr. Folch.
Asturreta Quarry, Eugui, Esteríbar, Comarca Auñamendi, Chartered Community of Navarre (Navarre)  Spain (±1967)

Specimen size: 7.7 × 6.1 × 6 cm = 3.03” × 2.40” × 2.36”

Main crystal size: 3.8 × 3.7 cm = 1.50” × 1.46”

With handwritten note & record from the Folch Collection (duplicates)
Twinned Dolomite. Front
Front
Twinned Dolomite. Top
Top
Doubly terminated Calcite
Doubly terminated Calcite. Front
Front
Doubly terminated Calcite. Side
Side
 

RZ11H9: The sample mined the August 1960, must be one of the first known from the locality. Doubly terminated, a twin of two trapezohedrons with rhombohedrons forming the terminations.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria  Spain (06/1960)

Specimen size: 5 × 3.7 × 2.8 cm = 1.97” × 1.46” × 1.10”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Calcite with Dolomite
 

RA10X8: An interesting and fine precursor of the samples from La Florida, with yellow and transparent scalenohedral crystals. On matrix, with slightly pink Dolomite crystals.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria  Spain (±1980)

Specimen size: 7.2 × 4.9 × 3.1 cm = 2.83” × 1.93” × 1.22”

Main crystal size: 2.7 × 1.4 cm = 1.06” × 0.55”

With handwritten note from the Folch Collection (duplicates)

Dolomite minor fluorescence long & short UV
Calcite with Dolomite.
Calcite with Dolomite. Calcite with Dolomite.
Calcite with Dolomite
Calcite with Dolomite.
 

RB11X8: Very aerial group of whitish scalenohedral Calcite crystals on a matrix of pink Dolomite crystals. It is a precursor of the Calcite from La Florida, but it has some significant differences, as with the color and the crystal morphology.
La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria  Spain (±1980)

Specimen size: 7.5 × 6.2 × 3.8 cm = 2.95” × 2.44” × 1.50”

Main crystal size: 1.6 × 0.9 cm = 0.63” × 0.35”

With handwritten note from the Folch Collection (duplicates)

Dolomite fluorescent long & short UV
Sphalerite with Dolomite
 

RX14P1: Well defined crystals, bright and of good color and transparency, with small coatings of white Dolomite, on matrix.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 4.2 × 3.6 × 2.8 cm = 1.65” × 1.42” × 1.10”

Main crystal size: 1 × 0.8 cm = 0.39” × 0.31”

Sphalerite with Dolomite. Sphalerite with Dolomite.
Sphalerite with Calcite and Dolomite
Sphalerite with Calcite and Dolomite. Front
Front
Sphalerite with Calcite and Dolomite. Side
Side
 

RM66P8: Complex crystals of Sphalerite of dark honey color and good transparency, partially coated by small crystals of Dolomite and with doubly terminated crystals of Calcite (a species uncommon at this locality in well-formed crytals), with the shape of a scalenohedron but composed of polycrystalline growths of the prism and a terminal rhombohedron.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 6.7 × 5.7 × 4.7 cm = 2.64” × 2.24” × 1.85”

With handwritten note from the Folch Collection (duplicates)
Sphalerite
 

RF86L9: Very sharp Sphalerite crystal with some curved edges. A translucent sample with a good honey to red intense color.
The piece is accompanied by a handwritten label from the Folch collection.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 7.3 × 6 × 3 cm = 2.87” × 2.36” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Sphalerite.
Sphalerite with Dolomite
Sphalerite with Dolomite.
 

RG14V1: Parallel growths of complex crystals of Sphalerite with a deep honey orange color and on a matrix of Dolomite with Calcite.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain

Specimen size: 8.8 × 6.1 × 5.6 cm = 3.46” × 2.40” × 2.20”

With handwritten note from the Folch Collection (duplicates)
Sphalerite with Dolomite
Sphalerite with Dolomite  

RH89K9: Complex Sphalerite crystal group, with multiple faces and curved edges. The color is excellent and contrasts with the snowy white Dolomite matrix.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain (±1968)

Specimen size: 10.1 × 7.5 × 6.5 cm = 3.98” × 2.95” × 2.56”

Main crystal size: 5.7 × 5.3 cm = 2.24” × 2.09”

With handwritten note from the Folch Collection (duplicates)
Sphalerite with Dolomite.
Sphalerite with Dolomite. Sphalerite with Dolomite.
Doubly terminated Calcite with Sphalerite
Doubly terminated Calcite with Sphalerite.
Doubly terminated Calcite with Sphalerite.
 

RF64L3: Calcite crystal, with a small but aerial Sphalerite crystal, not well defined but complete. Calcite from this mine is not common in this well defined shape.
Áliva Mine (Las Mánforas Mine), Áliva mining area, Camaleño, Comarca Liébana, Cantabria  Spain (±1975)

Specimen size: 5.7 × 4.1 × 3 cm = 2.24” × 1.61” × 1.18”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Fluorite
 

RE36V5: Transparent cubic crystal with clear sky blue color, echeloned growths on the edges and recrystallized on the back side. The sample resembles, due to its aspect, some of the recent pieces from La Viesca, but it is earlier than the works at this place and it is from La Collada.
The sample is with a label that we'll send to the buyer.
Josefa-Veneros vein, 75 level, Coroña de Arriba-La Collada, La Collada mining area, Siero, Comarca Oviedo, Principality of Asturias (Asturias)  Spain (±1973)

Specimen size: 10.5 × 8.6 × 5.4 cm = 4.13” × 3.39” × 2.13”

With handwritten note from the Folch Collection (duplicates)
Fluorite. Front
Front
Fluorite. Side
Side
Azurite with Conichalcite and Tyrolite
Azurite with Conichalcite and Tyrolite.
 

RQ59Y9: Nuclei of small Azurite crystals, on matrix, that have a very intense color and luster and are with botryoidal Conichalcite aggregates with a very deep green color and with leafy Tyrolite aggregates in clear bluish-green tones.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 3.5 × 2.8 × 4 cm = 1.38” × 1.10” × 1.57”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Azurite with Conichalcite and Tyrolite
 

RH13Y9: Surfaces of small Azurite crystals, on matrix, that have a very intense color and luster and are with very well defined botryoidal Conichalcite aggregates and with leafy Tyrolite aggregates in clear bluish-green tones.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 10.3 × 8.3 × 5.8 cm = 4.06” × 3.27” × 2.28”

With handwritten note from the Folch Collection (duplicates)
Azurite with Conichalcite and Tyrolite. Azurite with Conichalcite and Tyrolite.
Tyrolite with Chrysocolla
Tyrolite with Chrysocolla. Tyrolite with Chrysocolla.
 

RG46Y9: Very well defined radial Tyrolite aggregates of leafy crystals. The have an excellent silky luster and a pale bluish-green color. They are on matrix, with Chrysocolla.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 3.5 × 3.4 × 2.8 cm = 1.38” × 1.34” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Conichalcite and Azurite
Tyrolite with Conichalcite and Azurite  

RA6W6: Fanlike growths of laminar crystals of Tyrolite with a green, slightly blue, color and rough growths of the same mineral, with Azurite and globular growths of Conichalcite on a limonite matrix. The Chrysocolla cited on the original label from Folch surely refers to the rough Tyrolite.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain

Specimen size: 4.3 × 3.8 × 2.5 cm = 1.69” × 1.50” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Conichalcite and Azurite.
Tyrolite with Conichalcite and Azurite. Tyrolite with Conichalcite and Azurite.
Tyrolite
Tyrolite. Tyrolite.
Tyrolite  

RT9P1: Aggregates of thin laminar crystals of Tyrolite. They are bright and the color is very deep. On matrix with Chrysocolla and Tetrahedrite-Tennantite.
On the back of the label it is cited that it was collected by D. Joaquín Folch on the dumps of the mine in 1960.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (04/1960)

Specimen size: 5 × 4.7 × 3.2 cm = 1.97” × 1.85” × 1.26”

With handwritten note & record from the Folch Collection (duplicates)
Tyrolite with Azurite and Chrysocolla
 

RF47Z8: Aggregates of laminar Tyrolite crystals with excellent silky luster and pale green color. They are on matrix, with Azurite.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 5.1 × 4.1 × 1.8 cm = 2.01” × 1.61” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Azurite and Chrysocolla. Tyrolite with Azurite and Chrysocolla.
Tyrolite
Tyrolite. Tyrolite.
 

RV8P1: Deep green aggregates of thin laminar crystals on dark brown matrix.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (04/1960)

Specimen size: 5.4 × 4.3 × 2.9 cm = 2.13” × 1.69” × 1.14”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Azurite and Chrysocolla
Tyrolite with Azurite and Chrysocolla  

RF13AE6: Leafy aggregates, some of them radial, of very well defined tabular Tyrolite crystals with an excellent silky luster and deep green color. They are on matrix with Azurite and Chrysocolla.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 5.7 × 3.8 × 2.4 cm = 2.24” × 1.50” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Azurite and Chrysocolla. Front
Front
Tyrolite with Azurite and Chrysocolla. Rear
Rear
Tyrolite with Azurite and Chrysocolla.
Tyrolite with Azurite
Tyrolite with Azurite. Tyrolite with Azurite.
 

RC14Y9: Very well defined radial Tyrolite aggregates of leafy crystals. The have an excellent silky luster and a pale bluish-green color. They are on matrix, with Azurite.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 6 × 4.6 × 3 cm = 2.36” × 1.81” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Conichalcite and Azurite
 

RV12Y9: Very well defined radial Tyrolite aggregates of leafy crystals. The have an excellent silky luster and a pale bluish-green color. They are on matrix, with Azurite and Conichalcite.
The specimen's photo has been reviewed and published in the magazine ‘Rocks & Minerals’ on page 554 in the volume 90, number 6, Nov/Dec 2015
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 6.4 × 5 × 3.6 cm = 2.52” × 1.97” × 1.42”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Conichalcite and Azurite. Tyrolite with Conichalcite and Azurite.
Tyrolite
Tyrolite. Tyrolite.
Tyrolite  

RP96R0: Radial leafy growths of bright green laminar crystals of Tyrolite that contrast with the darker rocky matrix.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1959)

Specimen size: 7.2 × 4.2 × 4.7 cm = 2.83” × 1.65” × 1.85”

With handwritten note & record from the Folch Collection (duplicates)
Tyrolite with Azurite
 

RD86Y9: Very well defined radial Tyrolite aggregates of leafy crystals. The have an excellent silky luster and a pale bluish-green color.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 7.9 × 4.9 × 3.9 cm = 3.11” × 1.93” × 1.54”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Azurite. Tyrolite with Azurite.
Tyrolite with Chrysocolla and Azurite
Tyrolite with Chrysocolla and Azurite. Tyrolite with Chrysocolla and Azurite.
 

FT6K0: Leafy groups of laminar crystals on matrix, with Chrysocolla and vugs of small crystals of Azurite.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1981)

Specimen size: 7.9 × 6.2 × 5 cm = 3.11” × 2.44” × 1.97”

Main crystal size: 0.8 × 0.4 cm = 0.31” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Azurite and Chrysocolla
 

RB14Y9: Very well defined radial Tyrolite aggregates of leafy crystals. The have an excellent silky luster and a pale bluish-green color. They are on matrix, with Azurite and Chrysocolla.
Delfina Mine, Hoyos de Alda, Ortiguero, Prado, Cabrales, Comarca Oriente, Principality of Asturias (Asturias)  Spain (1960)

Specimen size: 8.2 × 5.5 × 5.2 cm = 3.23” × 2.17” × 2.05”

With handwritten note from the Folch Collection (duplicates)
Tyrolite with Azurite and Chrysocolla. Tyrolite with Azurite and Chrysocolla.
Cinnabar with Calcite
Cinnabar with Calcite. Cinnabar with Calcite.
 

RP66X8: Crystalline growth, on a rock matrix with exfoliated Calcite, a very typical aspect of the old Cinnabar samples found at the place erroneously called “puerto de Tarna,” which really corresponds to the Las Señales mines, also in León province. We note that this Cinnabar has not been acid-treated and that, in spite of the long time passed, maintains its intense luster and vivid red color. A classic, classic, from Spain.
Escarlati Mine, Puerto de las Señales, Maraña, Comarca Montaña Oriental, León, Castile and León  Spain

Specimen size: 6.2 × 4.6 × 5.6 cm = 2.44” × 1.81” × 2.20”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV

CENTRAL SPAIN


Cinnabar
 

RR16I7: Parallel growth of rhombohedral crystals. They have a considerable size for the locality and present good color and luster, even considering the long time passed since the specimen was mined.
This specimen's photo has been reviewed and published in the magazine ‘Mineralogical Record’ on page 45 in the volume 50, number 1, January-February 2019, ('Almadén!')
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1979)

Specimen size: 2 × 1.4 × 1.1 cm = 0.79” × 0.55” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Cinnabar. Front
Front
Cinnabar. Top
Top
Cinnabar with Dolomite
Cinnabar with Dolomite. Front
Front
Cinnabar with Dolomite. Top
Top
 

RQ17K9: Excellent miniature, very representative of the Almadén specimens. Showing well defined rhombohedron crystals, some of them with parallel growth. On matrix.
This specimen's photo has been reviewed and published in the magazine ‘Mineralogical Record’ on page 45 in the volume 50, number 1, January-February 2019, ('Almadén!')
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1978)

Specimen size: 3.0 × 1.8 × 1.4 cm = 1.18” × 0.71” × 0.55”

Main crystal size: 1.0 × 0.8 cm = 0.39” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Cinnabar
 

RF47F8: A splendid miniature with perfect growth of the crystals, in which the faces of the rhombohedron dominate. The color and brilliance are excellent. Folch found it at the Almadén Mine in 1923.
This specimen's photo has been reviewed and published in the magazine ‘Mineralogical Record’ on page 43 in the volume 50, number 1, January-February 2019, ('Almadén!')
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (1923)

Specimen size: 3.1 × 2 × 1.5 cm = 1.22” × 0.79” × 0.59”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

With handwritten note & record from the Folch Collection (duplicates)
Cinnabar.
Cinnabar
Cinnabar.
 

RK64L3: Well defined and bright Cinnabar crystals, some of them very aerial, with prominent rhombohedral faces with curvatures and fine striations. We can see small drops of liquid mercury on the matrix.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1964)

Specimen size: 3.4 × 3.1 × 2.2 cm = 1.34” × 1.22” × 0.87”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Dolomite
 

RQ14H8: Crystals, being small, have good color, luster and transparency and they strongly contrast with the white Dolomite where they are placed.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 4 × 3.4 × 2.9 cm = 1.57” × 1.34” × 1.14”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Dolomite. Front
Front
Cinnabar with Dolomite. Top
Top
Cinnabar with Dolomite
Cinnabar with Dolomite. Cinnabar with Dolomite.
 

RM14L3: Well formed Cinnabar crystals in a vug, with Quartz and Dolomite. The Folch label advises about the presence of Calomel (Calomelanos) as “small crystals inside the geode” with brown yellowish tones, but after analyses it has been demonstrated that it is Dolomite.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1979)

Specimen size: 4 × 3.8 × 2.5 cm = 1.57” × 1.50” × 0.98”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Baryte
 

RV6L9: Group of Cinnabar crystals with well defined faces and edges, with a honey-colored Baryte crystal (that we have analyzed) on a black quartzite matrix and grey Quartz.
The piece is accompanied by a handwritten label from the Folch collection.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1973)

Specimen size: 5 × 3.8 × 3.3 cm = 1.97” × 1.50” × 1.30”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Baryte.
Cinnabar with Baryte.
Cinnabar with Calcite
Cinnabar with Calcite.
Cinnabar with Calcite.
 

RM36I7: Groups of small crystals of excellent color and luster that contrast with a matrix rich in Quartz.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 5.8 × 4 × 3.3 cm = 2.28” × 1.57” × 1.30”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Quartz
 

RV7I2: The crystal has a considerable size for the locality and it has very well defined faces and edges, on matrix and with small Quartz crystals. A classic.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (±1980)

Specimen size: 5.8 × 5 × 3.3 cm = 2.28” × 1.97” × 1.30”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Quartz. Cinnabar with Quartz.
Cinnabar
Cinnabar.
Cinnabar.
 

RE76F8: The crystals are small but the color and brilliance are exceptional. Folch found it at the Almadén Mine in 1923.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain (1923)

Specimen size: 6.2 × 4.2 × 3 cm = 2.44” × 1.65” × 1.18”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)
Cinnabar with Quartz
 

RQ7K9: Lively red crystals, good brilliance, that contrast on a snowy Quartz matrix.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 7.2 × 4.5 × 1.4 cm = 2.83” × 1.77” × 0.55”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Cinnabar with Quartz.
Cinnabar with Quartz.
Cinnabar with Quartz
Cinnabar with Quartz. Cinnabar with Quartz.
 

RT96R6: Small crystals of Cinnabar with very well defined faces and edges, bright and of very intense red color, on white Quartz and on matrix. On the label there is noted the catalog number 35, one of the oldest in the Folch collection.
San Teodoro Shaft, Almadén Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 7.4 × 5.4 × 2.8 cm = 2.91” × 2.13” × 1.10”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Pyromorphite
 

RG48F9: An aerial and esthetical group with dramatic color zoning near the top. The crystals are large and have a few common characteristics of the Horcajo specimens. The tips, even considering a beginning of cone growth, are perfectly flat. Another historical sample, with a lot of years on its back, when Sr. Folch purchased it in 1923 from a miner at the locality.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain (1923)

Specimen size: 3 × 2.3 × 1.7 cm = 1.18” × 0.91” × 0.67”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Pyromorphite.
Pyromorphite
Pyromorphite. Front
Front
Pyromorphite. Rear
Rear
Pyromorphite  

RA88G0: A typical specimen from El Horcajo. Floating, with groups of parallel prismatic crystals forming walls. Crystals are grass green colored, with typical zones and changes of color near the tips.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 5.7 × 2.8 × 2.3 cm = 2.24” × 1.10” × 0.91”

With handwritten note from the Folch Collection (duplicates)
Pyromorphite
Pyromorphite  

RK88G2: Groups of prismatic crystals with the edges lightly curved. Some crystals are partially covered with and have inclusions of a mineral described as Litharge on the label, but we can't confirm that because we have not analyzed the mineral to certify it.
El Horcajo Mines, El Horcajo, Almodóvar del Campo, Comarca Campo de Calatrava, Ciudad Real, Castilla-La Mancha  Spain

Specimen size: 5.9 × 4.6 × 3.3 cm = 2.32” × 1.81” × 1.30”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Pyromorphite.
Pyromorphite.
Freibergite with Siderite and Quartz
Freibergite with Siderite and Quartz. Freibergite with Siderite and Quartz.
 

RQ14R0: Small but sharp crystals of Freibergite with excellent luster, implanted in small vugs coated by small crystals of Quartz and Chalcopyrite on a matrix very rich with Siderite. The species has been analyzed and we'll send a
copy of the analysis to the buyer.
Hiendelaencina, Comarca Serranía de Guadalajara, Guadalajara, Castilla-La Mancha  Spain (05/1950)

Specimen size: 3.1 × 3.1 × 1.6 cm = 1.22” × 1.22” × 0.63”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Freibergite with Siderite and Quartz
 

RY14R0: Small but sharp and extraordinarily bright crystals of Freibergite implanted in small vugs coated by small crystals of Quartz and on a matrix very rich with Siderite. The species has been analyzed and we'll send a copy of the analysis to the buyer.
Hiendelaencina, Comarca Serranía de Guadalajara, Guadalajara, Castilla-La Mancha  Spain (05/1950)

Specimen size: 4.2 × 2.4 × 2.9 cm = 1.65” × 0.94” × 1.14”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Freibergite with Siderite and Quartz. Freibergite with Siderite and Quartz.
Pyrargyrite on Quartz
Pyrargyrite on Quartz.
 

RF57K9: Well developed small crystal group with little recrystallizations on the face’s surface. On a white Quartz matrix.
Hiendelaencina, Comarca Serranía de Guadalajara, Guadalajara, Castilla-La Mancha  Spain

Specimen size: 2.0 × 1.1 × 1.0 cm = 0.79” × 0.43” × 0.39”

Main crystal size: 0.6 × 0.6 cm = 0.24” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Pyrargyrite
Pyrargyrite  

RD89F9: The crystals have a good size and are better defined than usual in the famous and very desired specimens from the Hiendelaencina mines. The top faces clearly show trigonal geometry. The group is a floater.
Hiendelaencina, Comarca Serranía de Guadalajara, Guadalajara, Castilla-La Mancha  Spain

Specimen size: 2.3 × 1.5 × 1.5 cm = 0.91” × 0.59” × 0.59”

Main crystal size: 1.3 × 1.2 cm = 0.51” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Pyrargyrite. Front
Front
Pyrargyrite. Top
Top
Pyrargyrite with Siderite and Quartz
Pyrargyrite with Siderite and Quartz. Pyrargyrite with Siderite and Quartz.
 

RB86K0: Small crystals of faces better defined than usual, on a matrix of Siderite and Quartz. This classic, classic, specimen has been chemically analyzed and we’ll send a copy of the analysis to the buyer of the specimen.
Hiendelaencina, Comarca Serranía de Guadalajara, Guadalajara, Castilla-La Mancha  Spain

Specimen size: 7.3 × 3.8 × 5.5 cm = 2.87” × 1.50” × 2.17”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Stephanite with Miargyrite
 

RH37F8: From the Spanish locality that is a classic for its excellent silver sulfosalts. A small, long crystal with perfect definition of the faces and accompanied by Miargyrite, both on the matrix typical for the locality. Folch found this at the Teresa Mine in 1950.
Hiendelaencina, Comarca Serranía de Guadalajara, Guadalajara, Castilla-La Mancha  Spain (05/1950)

Specimen size: 2.9 × 1.4 × 1.3 cm = 1.14” × 0.55” × 0.51”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)
Stephanite with Miargyrite.
Stephanite with Miargyrite.
Smoky Quartz with Microcline
Smoky Quartz with Microcline. Front
Front
Smoky Quartz with Microcline. Rear
Rear
 

RA11V0: Translucent crystals of Quartz showing inclusions and phantom growths. They are on a matrix of Microcline crystals, one of them clearly dominant and with a neat Baveno twin.
Bustarviejo, Comarca Sierra Norte, Community of Madrid  Spain

Specimen size: 7.1 × 7 × 5.2 cm = 2.80” × 2.76” × 2.05”

Main crystal size: 6.1 × 2.3 cm = 2.40” × 0.91”

With handwritten note from the Folch Collection (duplicates)
Smoky Quartz with inclusions, Microcline and Albite (pericline)
 

RA9V1: From a classic Spanish locality. Group of translucent crystals of Quartz slightly smoky, with phantom growths, very well defined faces and edges, and on a matrix of Microcline and Albite (variety pericline) crystals.
The handwritten label of the Folch collection that we'll send to the buyer notes that it was collected by Folch himself in 1917.
La Cabrera, Sigüenza, Comarca Sierra Norte de Guadalajara, Guadalajara, Castilla-La Mancha  Spain (1917)

Specimen size: 9.8 × 6.1 × 4.8 cm = 3.86” × 2.40” × 1.89”

Main crystal size: 4.5 × 2 cm = 1.77” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Smoky Quartz with inclusions, Microcline and Albite (pericline).
Twinned Orthoclase
Twinned Orthoclase. Front
Front
Twinned Orthoclase. Rear
Rear
 

FC58K0: Floater crystal, complete and doubly terminated, that forms a very well defined Carlsbad twin.
Zarzalejo, Comarca Sierra Oeste, Community of Madrid  Spain

Specimen size: 3.5 × 3.1 × 1.5 cm = 1.38” × 1.22” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Twinned Orthoclase
 

FD9K0: Floater crystal, complete and doubly terminated, that forms a very well defined Carlsbad twin.
Zarzalejo, Comarca Sierra Oeste, Community of Madrid  Spain

Specimen size: 3.9 × 3 × 1.6 cm = 1.54” × 1.18” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Twinned Orthoclase. Front
Front
Twinned Orthoclase. Rear
Rear

SOUTHERN SPAIN


Fluorapatite
Fluorapatite.
Fluorapatite  

RC11AA2: Very transparent and bright single crystal with an intense yellow color. It consists of two prisms (first and second order prisms) and a terminal pyramid. We especially note the mine, a Spanish classic, very poorly known.
Vaca Gorda Mine, La Celia, Jumilla, Comarca Altiplano, Region of Murcia (Murcia)  Spain (1945)

Specimen size: 1.4 × 0.7 × 0.7 cm = 0.55” × 0.28” × 0.28”

Minor fluorescence short UV
Almandine
Almandine  

RC11P1: Excellent sample both for its size and for the definition of the dodecahedral form.
The label shows that it was collected by Mr. Marçal Lloria in 1973.
Peña Grajera Quarry. Dos Puntos claim, Sierra Albarrana, Hornachuelos, Comarca Valle Medio del Guadalquivir, Córdoba, Andalusia  Spain (±1973)

Specimen size: 7.6 × 6.4 × 6.5 cm = 2.99” × 2.52” × 2.56”

Main crystal size: 6.5 × 5.5 cm = 2.56” × 2.17”

With handwritten note & record from the Folch Collection (duplicates)
Almandine. Front
Front
Almandine. Side
Side
Beryl with Quartz and Muscovite
Beryl with Quartz and Muscovite.
Beryl with Quartz and Muscovite  

RC10V1: From a classic Spanish locality. Single crystal of beryl with defined faces and edges and more translucent and bright than usual for the samples from this locality. It's on Quartz matrix and has thin coatings of Muscovite.
The sample is with a card from the Folch collection that we'll send to the buyer.
Hornachuelos, Comarca Valle Medio del Guadalquivir, Córdoba, Andalusia  Spain (±1959)

Specimen size: 7.9 × 4.4 × 3.9 cm = 3.11” × 1.73” × 1.54”

With handwritten note & record from the Folch Collection (duplicates)
Cassiterite with Scheelite
 

RZ6G2: The locality is very poorly-known and well crystallized samples are very scarce. In this specimen, Cassiterite forms a perfectly defined elbow twin, in a matrix very rich with Scheelite.
Cerro del Vidrio, Montoro, Comarca Alto Guadalquivir, Córdoba, Andalusia  Spain

Specimen size: 4 × 2.8 × 2.3 cm = 1.57” × 1.10” × 0.91”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”

With handwritten note from the Folch Collection (duplicates)

Scheelite extremely fluorescent long & short UV
Cassiterite with Scheelite. Cassiterite with Scheelite.
Cassiterite
Cassiterite.
 

RJ6G6: The locality is really unusual for crystallized Cassiterite. Crystal shows well-shaped faces of the pyramid and, less defined, the faces of the prism. The base, very rough, is a contact.
Ceres mining group, Cerro Cobatillas (La Covatilla), Cardeña, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 1.5 × 1.4 × 1.1 cm = 0.59” × 0.55” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Cassiterite
 

RH26H0: One of the frequent rarities that Folch’s collection contained, in this case for its locality. The crystal is a floater, with very sharp faces and edges with a little coverage of Mica.
Ceres mining group, Cerro Cobatillas (La Covatilla), Cardeña, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 1.7 × 1.5 × 1.1 cm = 0.67” × 0.59” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Cassiterite.
Bismuth
Bismuth.
 

RX64H8: Excellent thumbnail, very representative for the locality. Free of alteration, it has no real crystals (as frequently happens on this species) but shows a parallel polysynthetic growth of the Bismuth that forms a kind of feather. The specimen has a small matrix of Quartz. It is from a mine that closed a long time ago.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 1.6 × 1.6 × 2.2 cm = 0.63” × 0.63” × 0.87”

With handwritten note from the Folch Collection (duplicates)
Bismuth
 

RA76H9: A good sample, very representative of the specimens from the locality. It is free of alteration and although not having visible crystals (which is common for the species) it shows the polysynthetic parallel growth typical for Bismuth, and it has the form of a “feather”. It is from an old mine closed for a long time ago.
Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 4.5 × 4.2 × 1.8 cm = 1.77” × 1.65” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Bismuth.
Bismuth
Bismuth.
 

RD36H8: Excellent sample, very representative for the locality. Free of alteration, it has no real crystals (as frequently happens on this species) but shows a parallel polysynthetic growth of the Bismuth. It is from a mine that closed a long time ago.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 4.8 × 3 × 2.4 cm = 1.89” × 1.18” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Bismuth on Quartz
 

RF97K9: Polysynthetic and laminar growths, with a good luster, on a Quartz matrix with small grains of Bismuth disseminated throughout the matrix.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain ((01/1963))

Specimen size: 5.4 × 3.4 × 2.8 cm = 2.13” × 1.34” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Bismuth on Quartz.
Bismuth with Quartz
Bismuth with Quartz. Bismuth with Quartz.
 

RX86R0: Small sharp crystals of native Bismuth, very bright and partially coated by well defined crystals of Quartz. With the Bismuth there are elongated brassy, not well defined, Bismuthinite crystals.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain (09/1960)

Specimen size: 6.3 × 4.7 × 5.2 cm = 2.48” × 1.85” × 2.05”

With handwritten note from the Folch Collection (duplicates)
Bismuth with Quartz
 

RB17S7: A granular massive aggregate with very bright and very well marked skeletal and feathered growths, with Quartz.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 7.8 × 5.7 × 5.7 cm = 3.07” × 2.24” × 2.24”

With handwritten note from the Folch Collection (duplicates)
Bismuth with Quartz. Front
Front
Bismuth with Quartz. Side
Side
Bismuth with Quartz.
Bismuth with Calcite
Bismuth with Calcite. Bismuth with Calcite.
 

RB13R0: Granular growths and small sharp crystals of Bismuth that are very bright and partially coated by rhombohedral Calcite crystals, uncommon for the locality, with very well defined faces and edges and, occasionally, skeletal growths.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 7.9 × 5 × 3.7 cm = 3.11” × 1.97” × 1.46”

With handwritten note from the Folch Collection (duplicates)
Bismuth with Quartz
 

RE17R6: Growths of small crystals oriented in a socalled "feather" formation. The crystals are very bright and on a matrix with crystallized Quartz.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

Specimen size: 12.3 × 6.9 × 3.1 cm = 4.84” × 2.72” × 1.22”

With handwritten note from the Folch Collection (duplicates)
Bismuth with Quartz. Bismuth with Quartz.
Bismuth
Bismuth.
 

RA26G8: An historical sample, with a Folch’s autograph note, exactly detailing the point of the mine where it was mined, the gallery and the level and also the month and the year (1959). The sample is a close group of bright deformed and grained crystals, which are sharper in a zone rich on Quartz.
Dolores Mine, Sur Gallery, level 60, Dolores Mining Group, Las Lomas, Pozoblanco, Comarca Los Pedroches, Córdoba, Andalusia  Spain (1959)

Specimen size: 4.7 × 3.4 × 3.7 cm = 1.85” × 1.34” × 1.46”

With handwritten note from the Folch Collection (duplicates)
Blue Topaz
 

RE6H7: A clear crystal with an excellent color. It has very neat faces and some have have striations and other growth forms. Classic Spanish locality (but not very well known) that produced few samples of such quality.
San Nicolás mining group (San Nicolás Mine), Valle de la Serena, Comarca La Serena, Badajoz, Extremadura  Spain (±1976)

Specimen size: 1.7 × 1.5 × 1.7 cm = 0.67” × 0.59” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Blue Topaz.
Blue Topaz
Blue Topaz.
 

RF16L9: Topaz crystal with good color and transparence from a Spanish locality that has became a classic. Well defined faces and edges, with thin vertical striations.
The piece is accompanied by a handwritten label from the Folch collection that we will send to the buyer.
San Nicolás mining group (San Nicolás Mine), Valle de la Serena, Comarca La Serena, Badajoz, Extremadura  Spain (±1976)

Specimen size: 2.1 × 2 × 1.5 cm = 0.83” × 0.79” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Blue Topaz
 

RB76H7: Clear crystal with an excellent color. It has very neat faces and well defined terminations with some different growth forms. Classic Spanish locality (but not very well known) that produced few samples of such quality.
San Nicolás mining group (San Nicolás Mine), Valle de la Serena, Comarca La Serena, Badajoz, Extremadura  Spain (±1976)

Specimen size: 2.4 × 1.7 × 2.1 cm = 0.94” × 0.67” × 0.83”

With handwritten note from the Folch Collection (duplicates)
Blue Topaz.
Blue Topaz
Blue Topaz.
 

RC12M5: Very well defined crystal with dissolution forms and fibrous white undetermined inclusions. We specially note the locality, the only Spanish locality for gem topaz in notable quantity.
San Nicolás mining group (San Nicolás Mine), Valle de la Serena, Comarca La Serena, Badajoz, Extremadura  Spain (±1976)

Specimen size: 2.5 × 2.3 × 1.5 cm = 0.98” × 0.91” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Blue Topaz
 

RZ66H7: Clear crystal with an excellent color. It has very neat faces and well defined terminations with some different growth forms. Classic Spanish locality (but not very well known) that produced few samples of such quality.
San Nicolás mining group (San Nicolás Mine), Valle de la Serena, Comarca La Serena, Badajoz, Extremadura  Spain (±1976)

Specimen size: 2.5 × 2.4 × 2.5 cm = 0.98” × 0.94” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Blue Topaz.
Sphalerite
Sphalerite.
Sphalerite  

RA11P1: Group of very well defined crystals that came from a small well-documented Pyrite mine not known for well-crystallized samples of Sphalerite.
The citation A. d'Aboin on the label seems to refer to an engineer of the mine.
San Miguel Mine, Almonaster la Real, Comarca Sierra de Huelva, Huelva, Andalusia  Spain

Specimen size: 4.7 × 3.3 × 2 cm = 1.85” × 1.30” × 0.79”

Main crystal size: 1.2 × 1 cm = 0.47” × 0.39”

With handwritten note from the Folch Collection (duplicates)

PORTUGAL


Fluorapatite
 

RM64L9: Thick tabular Fluorapatite crystal showing with excellent definition the unusual, for the Panasqueira Mine, pyramid faces. With very marked concentric color zoning. There is a chip at the upper right corner.
The piece is accompanied by a handwritten label from the Folch collection.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1972)

Specimen size: 2.9 × 2 × 1.4 cm = 1.14” × 0.79” × 0.55”

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Fluorapatite.
Fluorapatite with Muscovite
Fluorapatite with Muscovite. Front
Front
Fluorapatite with Muscovite. Rear
Rear
 

RX16K9: Thick tabular crystal group, one of them clearly dominant. Excellent color, transparency and brilliance. On a small Muscovite crystal matrix.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 3.8 × 2.7 × 2.7 cm = 1.50” × 1.06” × 1.06”

With handwritten note from the Folch Collection (duplicates)

Zoned fluorescence long & short UV
Fluorapatite with Muscovite, Pyrite and Siderite
 

RQ16G2: Short tabular crystals, doubly terminated, well developed and partially covered by Muscovite. This floater sample was purchased by Folch, in person, from a miner in Barroca Grande, in the year 1965.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1965)

Specimen size: 3.9 × 2.2 × 2 cm = 1.54” × 0.87” × 0.79”

Main crystal size: 2.1 × 1.7 cm = 0.83” × 0.67”

With handwritten note & record from the Folch Collection (duplicates)

Extremely fluorescent long & short UV
Fluorapatite with Muscovite, Pyrite and Siderite.
Doubly terminated Fluorapatite
Doubly terminated Fluorapatite.
 

RM27F9: Maybe the plate form of this crystal is not common, but it is really a doubly-terminated crystal of an excellent color and size. The sample was purchased by Folch in March 1969 from a miner in Panasqueira.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1969)

Specimen size: 4.2 × 3.2 × 1.7 cm = 1.65” × 1.26” × 0.67”

With handwritten note & record from the Folch Collection (duplicates)

Intense Fluorescence long & short UV
Fluorapatite with Arsenopyrite and Muscovite
 

RB76K9: Thick tabular Fluorapatite crystal, with excellent transparency, brilliance and color, with evident geometric zoning. On a Muscovite matrix with small Arsenopyrite crystals.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1972)

Specimen size: 4.2 × 3.2 × 2.0 cm = 1.65” × 1.26” × 0.79”

Main crystal size: 2.4 × 2.4 cm = 0.94” × 0.94”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Fluorapatite with Arsenopyrite and Muscovite.
Fluorapatite with Muscovite
Fluorapatite with Muscovite.
 

TF46J3: Notable and esthetic group of tabular crystals, doubly terminated, transparent, bright and with zonation of color. They are on a Muscovite matrix with small crystals of Siderite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1979)

Specimen size: 4.5 × 2.7 × 1.8 cm = 1.77” × 1.06” × 0.71”

Main crystal size: 1.8 × 1.5 cm = 0.71” × 0.59”

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Fluorapatite, Quartz, Muscovite and Tourmaline
 

RF16V1: Doubly terminated short prismatic crystals of Fluorapatite with zones of color between green and violet-blue. They are on matrix, with Quartz, Muscovite and small acicular crystals of tourmaline (Schorl-Dravite)
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 4.9 × 4.3 × 3.2 cm = 1.93” × 1.69” × 1.26”

Main crystal size: 2.2 × 1.4 cm = 0.87” × 0.55”

Zoned fluorescence long & short UV
Fluorapatite, Quartz, Muscovite and Tourmaline.
Fluorapatite with Ferberite and Muscovite
Fluorapatite with Ferberite and Muscovite. Front
Front
Fluorapatite with Ferberite and Muscovite. Side
Side
 

TV26J3: Group of very well defined short prismatic crystals, most of them doubly terminated, with a sharp crystal of Ferberite on a side of the specimen.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (10/1965)

Specimen size: 5.5 × 3.6 × 2.6 cm = 2.17” × 1.42” × 1.02”

Main crystal size: 2.2 × 2.2 cm = 0.87” × 0.87”

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Fluorapatite with Calcite
 

RE67G0: The crystal is floating, complete and rich in pyramidal forms, rarely seen in Panasqueira specimens. In the tip there is a zone of clearer green, almost white. The specimen, in the back, is partially recovered by Calcite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (1967)

Specimen size: 6.9 × 4.1 × 2.5 cm = 2.72” × 1.61” × 0.98”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Fluorapatite with Calcite. Front
Front
Fluorapatite with Calcite. Rear
Rear
Fluorapatite with Calcite. Top
Top
Fluorapatite with Calcite and Muscovite
Fluorapatite with Calcite and Muscovite. Fluorapatite with Calcite and Muscovite.
 

RT6G8: Group short prismatic crystals, sharp and undamaged, on a matrix rich with Muscovite and small crystals of Calcite.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 7.3 × 6.5 × 4.3 cm = 2.87” × 2.56” × 1.69”

Main crystal size: 1.7 × 1.2 cm = 0.67” × 0.47”

With handwritten note from the Folch Collection (duplicates)

Fluorapatite fluorescent long & short UV
Fluorapatite with Muscovite and Arsenopyrite
Fluorapatite with Muscovite and Arsenopyrite  

RX36V0: Both tabular and elongated crystals of Fluorapatite on matrix. They have a clear green color with geometric inclusions of deeper color, they are very bright and they have related crystals of Muscovite and Arsenopyrite.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1972)

Specimen size: 9.2 × 5.7 × 3.2 cm = 3.62” × 2.24” × 1.26”

Main crystal size: 1.9 × 0.9 cm = 0.75” × 0.35”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long UV & minor fluorescence short UV
Fluorapatite with Muscovite and Arsenopyrite. Fluorapatite with Muscovite and Arsenopyrite.
Fluorapatite with Muscovite
Fluorapatite with Muscovite. Fluorapatite with Muscovite.
 

RF66L9: This sample is a rarity. A very curious combination in one piece of green and blue to violet Fluorapatite crystals. With some slight pyramidal faces less transparent than the prism faces. Crystals are on a matrix.
The piece is accompanied by a handwritten label from the Folch collection.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 5.4 × 4.8 × 2.3 cm = 2.13” × 1.89” × 0.91”

Main crystal size: 1.3 × 1.3 cm = 0.51” × 0.51”

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Ferberite with Siderite
 

RH66H7: Parallel group of prismatic crystals well defined, bright and having well defined terminations. The matrix is formed by tabular crystals of Siderite.On the back side is a minor crystal, probable Scheelite, visible with the UV light. Curiously, Scheelite is a scarce species at the Panasqueira Mine.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 4.8 × 3.6 × 2.6 cm = 1.89” × 1.42” × 1.02”

Main crystal size: 4.8 × 2.2 cm = 1.89” × 0.87”

With handwritten note from the Folch Collection (duplicates)

Scheelite fluorescent long & short UV
Ferberite with Siderite. Front
Front
Ferberite with Siderite. Top
Top
Ferberite with Muscovite, Siderite and Quartz
Ferberite with Muscovite, Siderite and Quartz. Front
Front
Ferberite with Muscovite, Siderite and Quartz. Side
Side
 

RM67H3: Excellent crystals, thicker than usual for Panasqueira and with very sharp and bright faces and edges. The faces are partially covered by spheroidal groups of Muscovite and small lenticular crystals of Siderite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 5.5 × 3.5 × 2 cm = 2.17” × 1.38” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite and Siderite
 

RZ86I8: Short prismatic crystal, doubly terminated and with parallel growths. On the back it is partially covered by small crystals of Siderite and Muscovite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1980)

Specimen size: 5.5 × 3.7 × 2.5 cm = 2.17” × 1.46” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite and Siderite. Front
Front
Ferberite with Muscovite and Siderite. Side
Side
Ferberite with Quartz
Ferberite with Quartz. Front
Front
Ferberite with Quartz. Side
Side
Ferberite with Quartz. Top
Top
 

RM86K4: Closed, dense group of crystals of thick tabular appearance, one of them clearly dominant, with an excellent definition of faces and edges and intense luster. On the backside there is a small Quartz crystal.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1980)

Specimen size: 5.8 × 4.7 × 3.4 cm = 2.28” × 1.85” × 1.34”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite and Siderite
 

RE77K8: Tabular crystals, very deep and brilliant black in color with a string of Muscovite crystals in the upper third. Classic for the species, a contact twin on {100} is readily seen by the offset which forms the "ledge" upon which the Muscovite crystals are attached.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1974)

Specimen size: 6.3 × 5.3 × 1.6 cm = 2.48” × 2.09” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite and Siderite. Front
Front
Ferberite with Muscovite and Siderite. Rear
Rear
Ferberite with Muscovite and Siderite. Top
Top
Ferberite with Siderite
Ferberite with Siderite. Front
Front
Ferberite with Siderite. Side
Side
 

RA76T5: Parallel growth of flattened prismatic crystals with very well defined faces and edges and partially coated by small lenticular crystals of Siderite.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1966)

Specimen size: 7.3 × 4.8 × 3.8 cm = 2.87” × 1.89” × 1.50”

Main crystal size: 3.9 × 3.5 cm = 1.54” × 1.38”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite
 

RG76V1: Parallel growths of flattened crystals. They are very bright, with sharp terminations and are partially coated by Muscovite.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1968)

Specimen size: 7.3 × 5.6 × 2.5 cm = 2.87” × 2.20” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite. Front
Front
Ferberite with Muscovite. Side
Side
Ferberite with Pyrite and Quartz
Ferberite with Pyrite and Quartz. Front
Front
Ferberite with Pyrite and Quartz. Rear
Rear
 

RM46Q5: Group of crystals of Ferberite, some of them doubly terminated, with very well defined forms and with pyramidal faces, rare on the samples from Panasqueira. With Quartz and small coatings of Pyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1965)

Specimen size: 7.5 × 6.5 × 4.4 cm = 2.95” × 2.56” × 1.73”

Main crystal size: 5.2 × 2.8 cm = 2.05” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite, Calcite, Pyrite and Chalcopyrite
 

RC97X8: Floater parallel growth of two complete Ferberite crystals with quite well-defined acute terminations, not too common at Panasqueira, and with white Calcite crystals, small leafy Muscovite aggregates and isolated crystals of Pyrite and Chalcopyrite on the back side.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1968)

Specimen size: 9.4 × 7.3 × 2 cm = 3.70” × 2.87” × 0.79”

Main crystal size: 8 × 5.7 cm = 3.15” × 2.24”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Muscovite, Calcite, Pyrite and Chalcopyrite. Front
Front
Ferberite with Muscovite, Calcite, Pyrite and Chalcopyrite. Top
Top
Arsenopyrite with Topaz and Siderite
Arsenopyrite with Topaz and Siderite. Arsenopyrite with Topaz and Siderite.
 

RM46M9: Group of very well defined and bright crystals of Arsenopyrite with small crystals of Muscovite and white Siderite. On the bottom of the specimen there are a group of small crystals of Topaz. Although in the past some Topaz appeared in this mine, they are actually extremely rare.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1982)

Specimen size: 5.7 × 4.1 × 3.6 cm = 2.24” × 1.61” × 1.42”

Main crystal size: 2 × 1.5 cm = 0.79” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Arsenopyrite with Siderite and Chalcopyrite
 

RG76G6: A nice group of doubly-terminated crystals of Arsenopyrite, with typical saw tooth edges and very bright. They contrast with lenticular crystals of Siderite and a little covering of Chalcopyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 7.3 × 5.7 × 3.8 cm = 2.87” × 2.24” × 1.50”

Main crystal size: 1.5 × 1.4 cm = 0.59” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Arsenopyrite with Siderite and Chalcopyrite.
Arsenopyrite
Arsenopyrite. Arsenopyrite.
Arsenopyrite  

RZ46V1: Parallel growths of short prismatic crystals of Arsenopyrite. They are very bright and are slightly coated by small crystals of Siderite and Muscovite.
The sample is with a card from the Folch collection (number 9698) that we'll send to the buyer.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1966)

Specimen size: 8.5 × 7 × 4.1 cm = 3.35” × 2.76” × 1.61”

Main crystal size: 3 × 2.3 cm = 1.18” × 0.91”

With handwritten note & record from the Folch Collection (duplicates)
Marcasite-Arsenopyrite with Quartz and Siderite
 

RF16M9: Very well defined and bright "cockscomb" growths of Marcasite with Quartz crystals partially covered by small lenticular crystals of Siderite and with Pyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1982)

Specimen size: 6.6 × 5.7 × 5 cm = 2.60” × 2.24” × 1.97”

Main crystal size: 2.8 × 2.2 cm = 1.10” × 0.87”

With handwritten note from the Folch Collection (duplicates)
Marcasite-Arsenopyrite with Quartz and Siderite. Front
Front
Marcasite-Arsenopyrite with Quartz and Siderite. Rear
Rear
Siderite with Quartz
Siderite with Quartz.
 

RD60M0: Lenticular Siderite crystals with a marked color zoning darker in the center and light-colored towards the edges. On a Quartz matrix.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 4.9 × 4.2 × 2.4 cm = 1.93” × 1.65” × 0.94”

Main crystal size: 0.8 × 0.4 cm = 0.31” × 0.16”

With handwritten note & record from the Folch Collection (duplicates)
Sphalerite with Chalcopyrite, Siderite, Pyrite and Muscovite
 

RB36M9: Parallel growths of crystals of globular aspect but with clearly defined faces. The Sphalerite is with lenticular crystals of Siderite, Chalcopyrite and small crystals of Pyrite and Muscovite.
Minas da Panasqueira, level 1, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1967)

Specimen size: 5.8 × 4.5 × 5.2 cm = 2.28” × 1.77” × 2.05”

With handwritten note from the Folch Collection (duplicates)
Sphalerite with Chalcopyrite, Siderite, Pyrite and Muscovite. Front
Front
Sphalerite with Chalcopyrite, Siderite, Pyrite and Muscovite. Rear
Rear
Sphalerite with Chalcopyrite, Siderite, Muscovite and Calcite
Sphalerite with Chalcopyrite, Siderite, Muscovite and Calcite. Sphalerite with Chalcopyrite, Siderite, Muscovite and Calcite.
 

RP66P1: Bright Sphalerite crystal with deep striations and triangular echeloning on its faces. It is with massive Chalcopyrite, Siderite, Muscovite and Calcite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1967)

Specimen size: 7.2 × 6.7 × 5.7 cm = 2.83” × 2.64” × 2.24”

Main crystal size: 4.7 × 3.4 cm = 1.85” × 1.34”

With handwritten note from the Folch Collection (duplicates)
Twinned Cassiterite
 

RC59I8: Crystal forms a cyclic, dipyramidal twin, very well defined. It has brown color and it is translucent and very bright.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 2 × 1.8 × 1.3 cm = 0.79” × 0.71” × 0.51”

With handwritten note from the Folch Collection (duplicates)
Twinned Cassiterite.
Twinned Cassiterite
Twinned Cassiterite. Front
Front
Twinned Cassiterite. Rear
Rear
 

TC26J3: A very interesting miniature both for the size of the crystal, considerable for Panasqueira, and because it is nearly transparent and has a very evident twin.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1978)

Specimen size: 2.6 × 2.6 × 2.8 cm = 1.02” × 1.02” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Cassiterite (twinned)
 

RX14W6: Group of twinned dipyramidal crystals that are very bright with yellowish brown reflections and transparencies and show fine horizontal striations. We especially note the size of the main crystal which is very big compared with most of the samples from Panasqueira.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 3.5 × 2.6 × 2 cm = 1.38” × 1.02” × 0.79”

Main crystal size: 2.6 × 2.3 cm = 1.02” × 0.91”

With handwritten note from the Folch Collection (duplicates)
Cassiterite (twinned).
Cassiterite with Quartz, Dolomite and Tourmaline
Cassiterite with Quartz, Dolomite and Tourmaline. Cassiterite with Quartz, Dolomite and Tourmaline.
 

RE60V1: Twinned crystals of Cassiterite. They are translucent and bright and are on matrix, with Quartz, Dolomite and small acicular crystals of tourmaline (Schorl-Dravite)
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1972)

Specimen size: 5.8 × 4.1 × 4.5 cm = 2.28” × 1.61” × 1.77”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Muscovite
 

RK27T5: Cyclic twinned crystals with sharp and very well defined faces and edges. They are translucent and extraordinarily bright and are on a matrix partially coated by Muscovite. A fine sample of one of the glorious epochs in Panasqueira.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 5.8 × 5 × 4.3 cm = 2.28” × 1.97” × 1.69”

Main crystal size: 1.1 × 1.1 cm = 0.43” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Muscovite. Cassiterite with Muscovite.
Cassiterite with Quartz and Siderite
Cassiterite with Quartz and Siderite. Cassiterite with Quartz and Siderite.
 

RK49K4: Great group of flat Cassiterite crystals. They are twinned, very bright and with small, very clear, crystals of Quartz on a matrix with lenticular crystals of Siderite. On the original label is written the year 1964.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1964)

Specimen size: 11.4 × 4.4 × 2.2 cm = 4.49” × 1.73” × 0.87”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Quartz and Siderite
 

RZ26T8: Very bright twinned crystals of Cassiterite, with neat transparency and implanted on a group of transparent Quartz crystals. We believe that this sample is not from the classic mining area of Panasqueira but from a nearby zone named “Vale da Ermida” as its appearance matches exactly the shape of the samples found there several years ago.
Vale da Ermida, Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Centro  Portugal (±1964)

Specimen size: 8 × 5 × 6.2 cm = 3.15” × 1.97” × 2.44”

Main crystal size: 1.2 × 1.1 cm = 0.47” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Quartz and Siderite. Cassiterite with Quartz and Siderite.
Cassiterite with Quartz
Cassiterite with Quartz.
Cassiterite with Quartz  

RQ62H8: The locality is very little known for Cassiterite. The crystals, some of them doubly terminated, are prismatic, twinned and in matrix. Their color is unusually clear and they are well-defined.
Mirandela, Bragança, Alto Douro  Portugal (±1980)

Specimen size: 3.4 × 2.6 × 1.4 cm = 1.34” × 1.02” × 0.55”

Main crystal size: 1.2 × 0.9 cm = 0.47” × 0.35”

With handwritten note from the Folch Collection (duplicates)
Cassiterite
 

RQ6K9: Cassiterite crystal with sharp faces and edges. The twin is very marked. This specimen comes from a little known Portuguese locality.
Boticas, Vila Real District, Alto Trás-os-Montes, Norte Region  Portugal

Specimen size: 3.4 × 3.2 × 2.5 cm = 1.34” × 1.26” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Cassiterite. Front
Front
Cassiterite. Top
Top
Cassiterite
Cassiterite. Front
Front
Cassiterite. Side
Side
 

RH76K9: Cassiterite crystal with sharp faces and edges with a considerable size an twinned. This specimen comes from a little known Portuguese locality.
Boticas, Vila Real District, Alto Trás-os-Montes, Norte Region  Portugal

Specimen size: 4.2 × 2.8 × 2.5 cm = 1.65” × 1.10” × 0.98”

With handwritten note from the Folch Collection (duplicates)

EUROPE (excl. Spain and Portugat)


Austria

Epidote
 

RQ56G2: The sample comes from probably the most classic locality for Epidote. Crystals, prismatic and very thin, are grouped in a very disordered way but very esthetically. The piece is a floater.
Knappenwand, Knappenwand area, Untersulzbach Valley, Hohe Tauern, Salzburg  Austria

Specimen size: 7.2 × 3 × 2.6 cm = 2.83” × 1.18” × 1.02”

Main crystal size: 2.3 × 0.5 cm = 0.91” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Epidote.
Orthoclase (variety adularia) with Clinochlore
Orthoclase (variety adularia) with Clinochlore.
Orthoclase (variety adularia) with Clinochlore. Orthoclase (variety adularia) with Clinochlore.
 

RD71M0: Two very sharp and twinned Orthoclase (variety adularia) crystals, with an excellent color and brilliance, with some inclusions of Clinochlore. On a matrix covered by small adularia and Quartz crystals.
The handwritten Folch label states that it was bought directly from a mountain guide in 1957.

Grossvenediger (northwest), Obersulzbach Valley, Hohe Tauern, Salzburg  Austria (±1957)

Specimen size: 14.5 × 11.5 × 11 cm = 5.71” × 4.53” × 4.33”

Main crystal size: 4.3 × 4.3 cm = 1.69” × 1.69”

With handwritten note from the Folch Collection (duplicates)
Strontianite with Calcite
Strontianite with Calcite  

RP67J1: Magnificent group of prismatic crystals of excellent size, definition of faces and edges, color and luster. They have marked inner phantom growths and they are on a base of small crystals of Calcite.
The specimen is with a label from Filer’s, Redlands, California, that we will send to the buyer.
The sample has been noted and photographed in the article "Oberdorf an der Laming" of the Mineralogical Record magazine on page 814 in the volume 49, number 6, November-December 2018
Oberdorf an der Laming, Laming Valley, Bruck an der Mur, Styria/Steiermark  Austria (±1964)

Specimen size: 4.7 × 4 × 3.5 cm = 1.85” × 1.57” × 1.38”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Strontianite with Calcite. Front
Front
Strontianite with Calcite. Top
Top
Strontianite with Magnesite
Strontianite with Magnesite.
Strontianite with Magnesite  

RH76Z8: Parallel aggregate, on a Magnesite matrix, of stacked Strontianite crystals with the typical hexagonal twin shape. The crystals are translucent and have a color between pinkish and yellowish. The sample is an Austrian classic and it is with a Franz Lammer collection label with manuscript notes by Joaquín Folch. We will send the label to the buyer.
Oberdorf an der Laming, Laming Valley, Bruck an der Mur, Styria/Steiermark  Austria

Specimen size: 6.7 × 4.9 × 3.3 cm = 2.64” × 1.93” × 1.30”

Main crystal size: 2.3 × 2 cm = 0.91” × 0.79”

With handwritten note & record from the Folch Collection (duplicates)
Calcite
 

RG14S7: Aggregate on matrix of scalenohedral crystals, translucent, bright, straw yellow and most of them doubly terminated. We especially note, due to its rarity, the locality.
Hochfeiler (Gran Pilastro), Ziller Valley (Zillertal), North Tyrol, Tyrol/Tirol  Austria

Specimen size: 7.7 × 5.4 × 3.9 cm = 3.03” × 2.13” × 1.54”

Main crystal size: 1.8 × 0.8 cm = 0.71” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Calcite. Calcite.
Wulfenite
Wulfenite. Front
Front
Wulfenite. Rear
Rear
Wulfenite.
 

RT63X8: Irregular aggregate very rich with crystals that have between a laminar and tabular shape and an orange color, not too common at Bleiberg, the type locality for the species. An European classic.
Bleiberg mining area, Gailtaler Alpen & Karnische Alpen, Carinthia/Kärnten  Austria

Specimen size: 7.6 × 7.1 × 5 cm = 2.99” × 2.80” × 1.97”

Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”

With handwritten note from the Folch Collection (duplicates)

Type locality

Czech Republic

Pyrargyrite with Calcite
 

RF16V5: Crystals of Pyrargyrite in a vein filled by acute scalenohedral crystals of Calcite on a matrix of massive Pyrargyrite. A classic of Czech mineralogy.
The sample is with a label that we'll send to the buyer.
Příbram, Central Bohemia Region, Bohemia  Czech Republic

Specimen size: 7 × 4.3 × 2.6 cm = 2.76” × 1.69” × 1.02”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Pyrargyrite with Calcite. Pyrargyrite with Calcite.

France

Rhodochrosite
Rhodochrosite. Rhodochrosite.
 

RD10T8: Small rhombohedral crystals of Rhodochrosite on matrix. They have color zoning, intense pink in their centers and transparent near colorless transparent edges. They are from a French locality uncommon in mineral collections.
Aderville, Louron Valley, Hautes-Pyrénées Département, Occitanie  France

Specimen size: 9.6 × 6.2 × 6.5 cm = 3.78” × 2.44” × 2.56”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)

Germany

Hureaulite
Hureaulite  

RH6F9: Faces of crystals are specially well defined, much more than is common for this phosphate, and the size is also considerable. In the label it's shown as Wenzelite (the old name for this species) with the proper correction.
Hagendorf, Waidhaus, Oberpfälzer Wald, Upper Palatinate/Oberpfalz, Bavaria/Bayern  Germany (±1953)

Specimen size: 3.5 × 2 × 2 cm = 1.38” × 0.79” × 0.79”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)
Hureaulite.
Hureaulite
Hureaulite.
Hureaulite  

RT62J1: Very well defined, with excellent color, crystals from this locality are classic for the species. The crystals contrast on a dark matrix, they are quite individualized and some of them are doubly terminated.
We will send an old label of the sample, from Dr. H. Maucher, Munich, to the buyer.
Hagendorf, Waidhaus, Oberpfälzer Wald, Upper Palatinate/Oberpfalz, Bavaria/Bayern  Germany

Specimen size: 4.2 × 3.6 × 2.6 cm = 1.65” × 1.42” × 1.02”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)
Laueite
 

RD6F8: A good miniature of this rare phosphate. The needlelike crystals fill a pocket and have associated Strunzite. It was bought from H. Maucher on 7 September 1959.
Hagendorf, Waidhaus, Oberpfälzer Wald, Upper Palatinate/Oberpfalz, Bavaria/Bayern  Germany (±1959)

Specimen size: 2.3 × 1.4 × 1.2 cm = 0.91” × 0.55” × 0.47”

With handwritten note & record from the Folch Collection (duplicates)

Type locality
Laueite.
Phosphophyllite with Vivianite and Quartz
Phosphophyllite with Vivianite and Quartz. Phosphophyllite with Vivianite and Quartz.
Phosphophyllite with Vivianite and Quartz  

MC96V0: From the type locality for the species. Groups of very acute dipyramidal crystals with sharp faces and edges. They are transparent, with a slightly green color and one of them with a nice and neat butterfly twin. They are on a matrix of Quartz with blue Vivianite. A German classic.
Hagendorf, Waidhaus, Oberpfälzer Wald, Upper Palatinate/Oberpfalz, Bavaria/Bayern  Germany (±1959)

Specimen size: 7.6 × 7.5 × 6.7 cm = 2.99” × 2.95” × 2.64”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)

Type locality
Strengite on Quartz
Strengite on Quartz  

RF37F8: Good crystals and good color. The locality is also rare in European collections and only a few of them contain specimens from it. Folch bought it from Peter Indergand who was from Göschenen, Switzerland.
Kreuzberg, Pleystein, Neustadt a.d.Waldnaab, Upper Palatinate/Oberpfalz, Bavaria/Bayern  Germany (±1956)

Specimen size: 4.2 × 2.8 × 2.6 cm = 1.65” × 1.10” × 1.02”

With handwritten note & record from the Folch Collection (duplicates)
Strengite on Quartz. Strengite on Quartz.
Pyromorphite
Pyromorphite.
Pyromorphite.
 

RP76J7: Druse of small prismatic crystals, very well defined and of an excellent green color. The locality is very rare and very unusual in collections. It was purchased by Sr. Folch in 1925.
Münstertal, Breisgau-Hochschwarzwald District, Freiburg, Baden-Württemberg  Germany (±1925)

Specimen size: 5.6 × 3.9 × 2.3 cm = 2.20” × 1.54” × 0.91”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Pyromorphite
 

RP76R6: Globular crystals of creamy color, with Quartz and on matrix. This very old European classic had been analyzed to certify the species and we send a copy of the analysis to the buyer.
Bad Ems, Bad Ems District, Lahn Valley, Rhineland-Palatinate/Rheinland-Pfalz  Germany

Specimen size: 8.7 × 5.7 × 2.6 cm = 3.43” × 2.24” × 1.02”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Pyromorphite. Pyromorphite.
Pyromorphite with Calcite
Pyromorphite with Calcite. Pyromorphite with Calcite.
Pyromorphite with Calcite.
 

MA56AA8: An aggregate that is very rich with bright crystals with a clear brown color, some of them with pinacoidal faces and other with polycrystalline terminations. They are on matrix, with Calcite. A great classic of high quality and with a size currently difficult to obtain.
Bad Ems, Bad Ems District, Lahn Valley, Rhineland-Palatinate/Rheinland-Pfalz  Germany (±1960)

Specimen size: 8.8 × 8.8 × 4.9 cm = 3.46” × 3.46” × 1.93”

Main crystal size: 1 × 0.3 cm = 0.39” × 0.12”

Former collection of Uwe Niemeyer

Minor fluorescence short UV
Rhodochrosite
Rhodochrosite  

RX47T5: Groups of very acute scalenohedral crystals, some of them doubly terminated, with curvatures on the faces and edges. They are transparent, have a deep red color and are on a limonite matrix. A sample from one of the great classic localities for the species.
It is with an old handwritten label that we'll send to the buyer.
Wolf Mine, Herdorf, Siegerland, Rhineland-Palatinate/Rheinland-Pfalz  Germany

Specimen size: 11.3 × 8.5 × 5 cm = 4.45” × 3.35” × 1.97”

Main crystal size: 0.5 × 0.3 cm = 0.20” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Rhodochrosite. Rhodochrosite.
Topaz (variety pycnite) with Zinnwaldite and Quartz
Topaz (variety pycnite) with Zinnwaldite and Quartz. Front
Front
Topaz (variety pycnite) with Zinnwaldite and Quartz. Side
Side
Topaz (variety pycnite) with Zinnwaldite and Quartz  

RV27X8: Typical parallel growths, between columnar and fibrous, with uniform yellow color and on matrix, with Quartz and Zinnwaldite. This kind of Topaz, historically well known, as the variety, pycnite, is a classic of German mineralogy.
Tin Mine, Altenberg, Weißeritzkreis District, Saxony/Sachsen  Germany (±1960)

Specimen size: 11.3 × 4.4 × 3 cm = 4.45” × 1.73” × 1.18”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Chalcopyrite with Dolomite
 

RG76J1: Very isolated crystals of very well defined faces and edges and extraordinarily bright, on a matrix of Dolomite. We specially note the locality because, actually, it is very difficult to obtain specimens of such quality from there.
Altenberg, Weißeritzkreis District, Saxony/Sachsen  Germany

Specimen size: 6.7 × 4.1 × 3.2 cm = 2.64” × 1.61” × 1.26”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Chalcopyrite with Dolomite.
Chalcopyrite with Dolomite.
Pyrargyrite
Pyrargyrite.
 

RJ36H0: An excellent classic in “thumbnail” version. Crystals have very well developed and defined faces and edges.
Freiberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 1.2 × 1.1 × 0.8 cm = 0.47” × 0.43” × 0.31”

Main crystal size: 0.5 × 0.2 cm = 0.20” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Pyrargyrite with Siderite
 

RQ99F9: The crystals are excellent, with prism faces less long than is usual for the species. It has a perfect hexagonal profile, with top faces totally flat and very esthetically positioned on its Siderite matrix. The specimen is with a very old label written with an old pen which is the base for autographed notes from Sr. Folch.
Annaberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 4.3 × 3.9 × 2.5 cm = 1.69” × 1.54” × 0.98”

Main crystal size: 1.4 × 1.1 cm = 0.55” × 0.43”

With handwritten note & record from the Folch Collection (duplicates)
Pyrargyrite with Siderite.
Pyrargyrite with Siderite.
Pyrargyrite with Siderite.
Pyrargyrite
Pyrargyrite. Front
Front
Pyrargyrite. Top
Top
Pyrargyrite  

RM14AA2: A single crystal with relatively complex crystalline forms. It is very bright and with good info about its origin: is from the "Beschert Glück Mine" a well known mine in the Freiberg District. A German classic.
Beschert Glück Mine, Zug, Freiberg District, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 1.5 × 0.8 × 0.8 cm = 0.59” × 0.31” × 0.31”

Pyrargyrite
 

RC96H9: We can consider it a classic among classics. Effectively, Pyrargyrite one of the species of reference for old German localities and especially for St. Andreasberg. The group is formed for relatively short crystals with excellent terminations formed by three faces of the rhombohedron. Color and luster, especially if we consider the antiquity of the sample, are very good.
St. Andreasberg mining area, Goslar District, Harz, Lower Saxony/Niedersachsen  Germany

Specimen size: 2.6 × 2.1 × 1.4 × cm = 1.02” × 0.83” × 0.55”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Pyrargyrite.
Pyrargyrite with Calcite
Pyrargyrite with Calcite. Front
Front
Pyrargyrite with Calcite. Detail seen from above
Detail seen from above
Pyrargyrite with Calcite  

RH99F9: A beautiful group of prismatic crystals on the typical Calcite matrix from St. Andreasberg. in spite of its antiquity (it was purchased by Folch in 1955 but surely is much older) it is perfectly preserved and the crystal surface has reddish reflections not always present in the species.
St. Andreasberg mining area, Goslar District, Harz, Lower Saxony/Niedersachsen  Germany

Specimen size: 4.7 × 4.7 × 2.7 cm = 1.85” × 1.85” × 1.06”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

With handwritten note & record from the Folch Collection (duplicates)
Ferberite
 

RG56R6: A classic sample for European mineralogy. As with most of the samples from Zinnwald, it is a single crystal with very well defined faces and edges, and very fine striations.
Zinnwald/Cinovec, Krusné Hory Mountains, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 4.7 × 2.9 × 2.4 cm = 1.85” × 1.14” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Ferberite.
Ferberite
Ferberite.
 

RH96R6: A classic sample for European mineralogy. As with most of the samples from Zinnwald, it is a single crystal with very well defined faces and edges, and very fine striations.
Zinnwald/Cinovec, Krusné Hory Mountains, Erzgebirgskreis, Saxony/Sachsen  Germany

Specimen size: 5.4 × 3.9 × 2.4 cm = 2.13” × 1.54” × 0.94”

With handwritten note from the Folch Collection (duplicates)

Greece

Rhodochrosite
Rhodochrosite  

RA76M0: Complex aggregate with an excellent color, very intense and bright. On matrix with Sphalerite.
This specimen is accompanied by the Siber+Siber label, from Zurich (Switzerland).

Madem-Lakko Mine, Stratoni operations, Cassandra Mines, Chalkidiki Prefecture, Macedonia Department  Greece (±1973)

Specimen size: 5.7 × 5.1 × 2.1 cm = 2.24” × 2.01” × 0.83”

With handwritten note from the Folch Collection (duplicates)
Rhodochrosite. Rhodochrosite.
Rhodochrosite
Rhodochrosite.
 

RD87G2: An attractive group from a very uncommon locality. The Rhodochrosite forms columnar growths of a splendid pink color and silky luster.
Cassandra Mines, Chalkidiki Prefecture, Macedonia Department  Greece

Specimen size: 7 × 6 × 1.8 cm = 2.76” × 2.36” × 0.71”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Rhodochrosite
 

RC46G2: An attractive group from a very uncommon locality. The Rhodochrosite form columnar growths of a splendid pink color and silky luster.
Cassandra Mines, Chalkidiki Prefecture, Macedonia Department  Greece

Specimen size: 9.2 × 6.5 × 4 cm = 3.62” × 2.56” × 1.57”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Rhodochrosite.

Greenland

Hidrokenoralstonita
Hidrokenoralstonita.
 

RB11V1: The sample is from the type locality for the species. An excellent miniature of this rare fluoride, with very well defined crystals of very good size for the species, and extraordinarily bright.
Ivigtut deposit, Ivittuut, Arsuk Fjord, Sermersooq  Greenland

Specimen size: 2.8 × 2 × 1.3 cm = 1.10” × 0.79” × 0.51”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

Type locality

With handwritten note from the Folch Collection (duplicates)

Italy

Celestine with Sulfur
 

RA96T8: Groups of elongated crystals of Celestine with a snowy white color, very bright and with completely transparent areas. They are on a matrix of Sulfur.
Agrigento (Girgenti) Province, Sicily  Italy

Specimen size: 12 × 10.8 × 6.5 cm = 4.72” × 4.25” × 2.56”

Main crystal size: 1.5 × 0.6 cm = 0.59” × 0.24”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Celestine with Sulfur. Celestine with Sulfur.
Hematite with Quartz
Hematite with Quartz.
Hematite with Quartz.
Hematite with Quartz.
 

RF46M5: Aggregate of lenticular, very bright crystals, partially covered by small white crystals of Quartz. A classic.
Rio Marina, Elba Island, Livorno Province, Tuscany  Italy

Specimen size: 12.3 × 9.8 × 9.5 cm = 4.84” × 3.86” × 3.74”

Main crystal size: 2.4 × 1.8 cm = 0.94” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Atacamite
 

RA17K8: Not well defined crystal group of Atacamite, but with impressive color and brilliance. Also impressive is the origin of this specimen: Elba Island. From this locality Atacamite has been described as a very uncommon mineral.
Isola d'Elba  Italy

Specimen size: 7 × 5.2 × 4.5 cm = 2.76” × 2.05” × 1.77”

With handwritten note from the Folch Collection (duplicates)
Atacamite. Atacamite.
Covellite with Pyrite
Covellite with Pyrite.
 

RL78F8: A very attractive specimen, for both its perfect size, definition, and intense, metallic blue of the laminar crystals of Covellite, which contrast well with the small groups of Pyrite crystals. The locality is its second strong point: the classic mine of Calabona, Sardinia. It was bought in 1922.
Calabona Mine, Alghero, Sassari Province, Sardinia/Sardegna  Italy (±1920)

Specimen size: 5 × 4.3 × 4.2 cm = 1.97” × 1.69” × 1.65”

With handwritten note & record from the Folch Collection (duplicates)
Anglesite with Galena
Anglesite with Galena  

RE86J5: Typical crystal from Monteponi. Prismatic, clear, transparent, bright and on Galena matrix. Monteponi is one of the classic localities for Anglesite and Phosgenite.
Sr. Folch bought the specimen in 1914 to the Comptoir Minéralogique et Géologique Suisse of Geneva.
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna  Italy (±1914)

Specimen size: 6.5 × 5.2 × 5.3 cm = 2.56” × 2.05” × 2.09”

Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”

With handwritten note & record from the Folch Collection (duplicates)
Anglesite with Galena. Front
Front
Anglesite with Galena. Side
Side
Anglesite on Galena
Anglesite on Galena.
Anglesite on Galena.
Anglesite on Galena  

RF89G6: The locality is really a classic. Crystals, occupying a cavity in a Galena matrix, have sharp faces and edges and the main one has a considerable size.
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna  Italy

Specimen size: 6.8 × 6.3 × 3.9 cm = 2.68” × 2.48” × 1.54”

Main crystal size: 2.7 × 1.7 cm = 1.06” × 0.67”

With handwritten note & record from the Folch Collection (duplicates)

Intense fluorescence long & short UV
Vesuvianite
Vesuvianite  

RF64M5: The sample, from the type locality, shows a group of crystals on matrix, one of them clearly dominant, of very well defined faces and edges, brown with green reflections and a nice luster.
The sample is with an old label in which are no indications about the former collection. The label will be sent to the buyer.
Vesuvio, Somma-Vesuvio, Napoli, Campania  Italy

Specimen size: 3.7 × 4.7 × 5.4 cm = 1.46” × 1.85” × 2.13”

Main crystal size: 2 × 1.8 cm = 0.79” × 0.71”

With handwritten note from the Folch Collection (duplicates)

Type locality
Vesuvianite.
Vesuvianite.
Andradite (variety demantoid)
Andradite (variety demantoid).
Andradite (variety demantoid).
 

RJ16K4: On the sample coexist rounded crystals and very well defined ones on matrix. The color is good, classic for the locality. In some areas of the specimen there is fibrous Actinolite.
Franscia Cave, Lanzada, Val Malenco  Italy (±1926)

Specimen size: 11.7 × 6.2 × 3 cm = 4.61” × 2.44” × 1.18”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Noruega

Ferrohornblende
Ferrohornblende  

RJ13H8: The faces of the prism are very well defined and with fine vertical striations, while terminations are less clear because they coincide with contacts. We call attention to the locality, one of the most classic from Norway.
Kragerø, Telemark, Østlandet  Norway

Specimen size: 4.2 × 2 × 1.1 cm = 1.65” × 0.79” × 0.43”

With handwritten note & record from the Folch Collection (duplicates)
Ferrohornblende.
Corundum with Oligoclase and Biotite
Corundum with Oligoclase and Biotite. Corundum with Oligoclase and Biotite.
Corundum with Oligoclase and Biotite  

TH77J3: Tabular crystals with geometric striations of growth. Color is very intense, especially enhanced when the specimen is under a strong light. Crystals are in a Biotite matrix very rich of Oligoclase. We are very pleased because it has been possible for us to precisely certify the locality of origin, which is not always easy.
This specimen is noted as acquired in 1957 and it is with a label from Burminco (George Burnham) that we’ll send to the buyer.
Kleggassen, Froland, Arendal  Norway (±1957)

Specimen size: 5.4 × 4.4 × 2.4 cm = 2.13” × 1.73” × 0.94”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

With handwritten note & record from the Folch Collection (duplicates)

Corundum and Oligoclase fluorescent long & short UV
Allanite-(Ce) with Muscovite, Spessartine and perthite
 

RJ10Z8: Parallel aggregates, oriented on the feldspar and Muscovite matrix, of flattened Allanite-(Ce) crystals with a dark Brown, almost black, color. Some decades ago this kind of sample, a Norwegian classic, was considered great quality for the species.
Dauren Hill, Frikstad, Iveland, Aust-Agder  Norway (01/09/1960)

Specimen size: 10.4 × 7.1 × 2.7 cm = 4.09” × 2.80” × 1.06”

Main crystal size: 4.5 × 0.6 cm = 1.77” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Allanite-(Ce) with Muscovite, Spessartine and perthite. Allanite-(Ce) with Muscovite, Spessartine and perthite.
Allanite-(Ce) with Muscovite, Spessartine and perthite
Allanite-(Ce) with Muscovite, Spessartine and perthite. Allanite-(Ce) with Muscovite, Spessartine and perthite.
 

RF62Z8: Parallel aggregates, oriented on the feldspar and Muscovite matrix, of flattened Allanite-(Ce) crystals with a dark Brown, almost black, color. Some decades ago this kind of sample, a Norwegian classic, was considered great quality for the species.
Solås Quarry, Iveland, Aust-Agder  Norway (1960)

Specimen size: 12.2 × 8.6 × 3.2 cm = 4.80” × 3.39” × 1.26”

Main crystal size: 6 × 0.2 cm = 2.36” × 0.08”

With handwritten note from the Folch Collection (duplicates)

Romania

Rhodochrosite with Quartz
 

RF13P8: Spheroidal growths of small rhombohedral crystals of pale pink Rhodochrosite crystals on a matrix of Quartz with two generations of growth, a first one with botryoidal growths of small crystals and a second forming a very aerial group of milky Quartz crystals very well defined and with curvatures of their faces and edges.
Cavnic mining area, Cavnic, Maramures  Romania

Specimen size: 8.3 × 6.9 × 3.3 cm = 3.27” × 2.72” × 1.30”

Type locality
Rhodochrosite with Quartz.
Pyrrhotite
Pyrrhotite.
Pyrrhotite  

RM36F8: A curious growth form where the crystal’s lateral growth patterns have become so deep that they look like laminar crystals. For all the passage of time they still have excellent color and brilliance. It was bought in 1927 from W. Maucher of Munich.
Herja Mine, Chiuzbaia, Baia Sprie, Maramures  Romania (±1927)

Specimen size: 3.6 × 2.8 × 2.2 cm = 1.42” × 1.10” × 0.87”

With handwritten note & record from the Folch Collection (duplicates)

Herja -> former Kisbanya
Stibnite with Baryte
 

RD46X8: Radial aggregate of bright Stibnite crystals, elongated, with perfect terminations and with a small matrix.
Baia Sprie Mine, Baia Sprie, Maramures  Romania (±1974)

Specimen size: 8 × 5.5 × 4.1 cm = 3.15” × 2.17” × 1.61”

Main crystal size: 3 × 0.6 cm = 1.18” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Stibnite with Baryte.
Sylvanite with Quartz
Sylvanite with Quartz.
Sylvanite with Quartz.
Sylvanite with Quartz  

TG97J1: A specimen with pedigree, excellent and classic at the same time, with very well defined crystalline formations as usual for the species.
The specimen is with an old label from the Sir Arthur Russell collection (num. 32) in which is stated, as the previous source, the collection of Colonel H.W. Lake. With the specimen, we will send the label to the buyer.
Baia de Aries, Apuseni Mountains, Alba, Transylvania  Romania

Specimen size: 5.9 × 4.4 × 2.8 cm = 2.32” × 1.73” × 1.10”

With handwritten note from the Folch Collection (duplicates)

Slovak Republic

Devilline
 

FQ76J7: Group of laminar crystals of extraordinarily deep bluish-green color, on matrix. The specimen, that was acquired in 1956 is with a label from Peter Indergant (numb. 1817) in which the species appears as Herrengrundite, a name actually now obsolete and that refers to its previous name, from Herregrund, its locality of origin.
Spania Dolina (Herrengrund), Banská Bystrica  Slovak Republic (±1956)

Specimen size: 4.1 × 3.4 × 2.7 cm = 1.61” × 1.34” × 1.06”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Devilline. Devilline.

Slovenia

Cinnabar
Cinnabar. Cinnabar.
Cinnabar  

RR64V0: An excellent sample from one of the most classic localities for the species but rarely appeared there in significant sharp crystals. The small crystals of this piece are morphologically complex, with the dominant faces of the rhombohedron. A lot of them are individual and transparent, very bright and on matrix. An European classic.
Idria Mine, Idria  Slovenia

Specimen size: 8.4 × 6.8 × 4.4 cm = 3.31” × 2.68” × 1.73”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”

With handwritten note from the Folch Collection (duplicates)

Sweden

Cobaltite with Pyrrhotite
Cobaltite with Pyrrhotite  

RJ76M2: This esthetic sample shows three sharp and brilliant Cobaltite crystals, one of them with a good size, with dominant forms of the cube and pyritohedron. All are included in a massive Pyrrhotite matrix. We found that the crystals are not reattached to the matrix but are included in it in a natural way. With the specimen we will send the Folch collection card Nr. 11.165.
Hakansboda, Lindesberg, Västmanland  Sweden

Specimen size: 6 × 4.3 × 2.8 cm = 2.36” × 1.69” × 1.10”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

With handwritten note & record from the Folch Collection (duplicates)
Cobaltite with Pyrrhotite. Cobaltite with Pyrrhotite.
Gahnite
Gahnite.
Gahnite.
Gahnite  

RK27F8: Two black, octahedral crystals on matrix. It is not common that one finds examples of this species with good crystal form, especially with such sharp profiles. It comes with a label from Deyrolle (Paris), where he bought it in 1933, which has Sr. Folch’s handwritten notes on it.
Fahlun, Kopparberg  Sweden (±1930)

Specimen size: 5 × 2.5 × 1.8 cm = 1.97” × 0.98” × 0.71”

Main crystal size: 1.3 × 1.5 cm = 0.51” × 0.59”

With handwritten note & record from the Folch Collection (duplicates)

Type locality
Berzeliite with Hausmannite
Berzeliite with Hausmannite  

RT63F8: A very rare arsenate. It has surfaces with exfoliation that have an intense color. On the Quartz matrix there are also grains of Hausmanite. The printed label is from Dr. F. Krantz (Bonn)
Langban, Filipstad, Värmland  Sweden (±1960)

Specimen size: 5 × 2.8 × 1.9 cm = 1.97” × 1.10” × 0.75”

With handwritten note & record from the Folch Collection (duplicates)

Type Locality

Calcite very fluorescent long & short UV
Berzeliite with Hausmannite.
Berzeliite with Calcite and Hausmannite
Berzeliite with Calcite and Hausmannite. Front
Front
Berzeliite with Calcite and Hausmannite. Top
Top
Berzeliite with Calcite and Hausmannite  

RY13T5: Deep yellow crystalline aggregates of this very rare arsenate that contrasts with white Calcite on the matrix.
The sample comes from the type locality and it is with an old label of Dr. F. Krantz, from Bonn, that we'll send to the buyer.
Langban, Filipstad, Värmland  Sweden (±1962)

Specimen size: 8.2 × 5.2 × 3.7 cm = 3.23” × 2.05” × 1.46”

With handwritten note & record from the Folch Collection (duplicates)

Type locality

Calcite extremely fluorescent long & short UV

Switzerland

Axinite-(Fe) with Albite
Axinite-(Fe) with Albite  

RY63M0: Very flattened and well defined Axinite-(Fe) crystals, with good color and brilliance. On matrix. In the handwritten Folch label one can read that it was a gift of A. Sulzbach, from Zurich (Switzerland) made in 1950. It is accompanied by the card of the Folch collection (Nr. 4704).

Scópi Mountain, Medel Valley, Grisons  Switzerland (±1950)

Specimen size: 4 × 2.9 × 2.4 cm = 1.57” × 1.14” × 0.94”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”

With handwritten note & record from the Folch Collection (duplicates)
Axinite-(Fe) with Albite. Front
Front
Axinite-(Fe) with Albite. Top
Top
Axinite-(Fe) with Albite
Axinite-(Fe)  with Albite.
Axinite-(Fe)  with Albite  

RK66H7: We specially note the locality, very rarely represented in collections. It is a flat crystal of well defined faces and edges, on a matrix of Albite. The Folch collection label shows it was purchased in Geneva in 1922.
Piz Vallatscha, Lukmanier Pass, Grisons  Switzerland (±1922)

Specimen size: 2.6 × 2.6 × 1.6 cm = 1.02” × 1.02” × 0.63”

Main crystal size: 2 × 1.2 cm = 0.79” × 0.47”

With handwritten note & record from the Folch Collection (duplicates)
Axinite-(Fe) with Albite and Chlorite
Axinite-(Fe) with Albite and Chlorite  

RC26K8: Group of crystals with very sharp faces and edges, very brilliant and transparent, partially covered by Chlorite on Albite matrix. This well-known locality is very poorly represented in mineral collections, including the very old ones.
Piz Vallatscha, Lukmanier Pass, Grisons  Switzerland (±1922)

Specimen size: 4.7 × 4.1 × 1.5 cm = 1.85” × 1.61” × 0.59”

Main crystal size: 0.8 × 0.5 cm = 0.31” × 0.20”

With record from the Folch Collection (duplicates)
Axinite-(Fe) with Albite and Chlorite.
Calcite (papierspat)
Calcite (papierspat). Front
Front
Calcite (papierspat). Rear
Rear
 

RV12L9: Totally flattened Calcite crystal (“papierspat”) with pyramid shape and very marked striations. The specimen is from a classic locality for this kind of Calcite crystal.
The piece is accompanied by a handwritten label from the Folch collection.
Maderannertal  Switzerland (±1947)

Specimen size: 5.2 × 4.5 × 0.8 cm = 2.05” × 1.77” × 0.31”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Calcite "papierspat" with chlorite, adularia and Quartz
 

RM27X8: A floater with parallel growths of Calcite crystals, with a lot of extraordinarily flat oriented faces (this form is well known as “papierspat”). They are with small well defined Orthoclase (adularia) crystals and chlorite coatings.
Griesernthal, Uri  Switzerland (±1952)

Specimen size: 9.3 × 5.3 × 2.5 cm = 3.66” × 2.09” × 0.98”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Calcite
Front
Calcite
Rear
Anatase and Brookite with Quartz
Anatase and Brookite with Quartz.
Anatase and Brookite with Quartz.
Anatase and Brookite with Quartz  

RV60I8: Groups of very small dipyramidal, very sharp and doubly terminated crystals, extraordinarily bright. They are on a matrix of small doubly terminated crystals of Quartz.
Lungerntal, Maderanertal, Uri  Switzerland (±1954)

Specimen size: 3 × 2 × 1.8 cm = 1.18” × 0.79” × 0.71”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)
Anatase and Quartz
Anatase and Quartz  

TR64I8: Dipyramidal, very sharp and doubly terminated crystal with small crystals of Brookite and Quartz, on matrix. The sample is with a label from the Comptoir Minéralogique & Géologique Suisse, of Geneva.
Piz Aul, Vals, Vals Valley, Grisons  Switzerland

Specimen size: 5.3 × 3.9 × 3.7 cm = 2.09” × 1.54” × 1.46”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)
Anatase and Quartz. Anatase and Quartz.
Anhydrite with Rutile on Dolomite
Anhydrite with Rutile on Dolomite. Front
Front
Anhydrite with Rutile on Dolomite. Rear
Rear
Anhydrite with Rutile on Dolomite  

RB58F8: The color and transparency are both very good, as is the position of the doubly terminated crystals on the matrix. Nowadays it is extremely hard to get hold of this material as they came from the construction of the Simplon tunnel. This comes from an exchange with the Zurich museum and has a label from the collection of a technical college.
Simplon Tunnel, Wallis  Switzerland (±1950)

Specimen size: 3.2 × 2.8 × 2 cm = 1.26” × 1.10” × 0.79”

Main crystal size: 2.1 × 0.8 cm = 0.83” × 0.31”

With handwritten note & record from the Folch Collection (duplicates)
Titanite with Clinochlore
 

RV63M0: Excellent miniature. Twinned crystal with a good color and brilliance. On an Orthoclase (adularia) matrix partially covered by Clinochlore.
Druntobel, Sedrun, Tavetsch, Grisons  Switzerland

Specimen size: 2.5 × 1.9 × 2 cm = 0.98” × 0.75” × 0.79”

Main crystal size: 1.2 × 0.4 cm = 0.47” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Titanite with Clinochlore.
Titanite with Chlorite
Titanite with Chlorite.
 

RB60P8: A crystal of Titanite of good size, very well defined, with curved faces and edges and completely chloritized, probably by Clinochlore. A classic.
Griesseren Valley, Maderanertal, Uri  Switzerland

Specimen size: 3.4 × 2.8 × 2.2 cm = 1.34” × 1.10” × 0.87”

With handwritten note from the Folch Collection (duplicates)
Quartz with Titanite and Chlorite
 

RM64R0: Very sharp thin laminar light cream-colored crystals of Titanite on a group of deeply chloritized Quartz crystals partially coated by small Orthoclase (adularia) crystals. The locality is considered an European classic.
Bächli glacier, Bächli Valley, Grimsel, Bern  Switzerland (±1947)

Specimen size: 8.8 × 5 × 2.4 cm = 3.46” × 1.97” × 0.94”

Main crystal size: 1 × 0.5 cm = 0.39” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Quartz with Titanite and Chlorite. Quartz with Titanite and Chlorite.
Perovskite with Magnetite
Perovskite with Magnetite. Perovskite with Magnetite.
Perovskite with Magnetite  

RE67X8: Equant (pseudocubic) Perovskite crystal. Bright and with a dark brown color, it is on a chlorite matrix, with small black Magnetite crystals. The sample, not included in Calcite, has not been acid treated so it maintains a very good luster.
Rimpfischwange, Zermatt, Valais  Switzerland (1951)

Specimen size: 8.8 × 5.2 × 2.9 cm = 3.46” × 2.05” × 1.14”

Main crystal size: 0.8 × 0.8 cm = 0.31” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Epidote
Epidote  

RE58M2: Parallel growth of well defined and bright Epidote crystals, some of them doubly terminated, with an intense green color. The specimen was purchased by Folch from Joseph Levy, in Disla (Disentis, Switzerland) in 1949, as is indicated in the Folch collection card Nr. 4.812 which we will send to the buyer.
Gronda da Cavrein Valley, Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1949)

Specimen size: 3 × 2.2 × 1.8 cm = 1.18” × 0.87” × 0.71”

Main crystal size: 2 × 0.9 cm = 0.79” × 0.35”

With handwritten note & record from the Folch Collection (duplicates)
Epidote.
Epidote
Epidote. Front
Front
Epidote. Top
Top
 

RJ12P8: A Swiss classic with two very well marked phases of crystallization, the first one as a basic single prism having very well defined faces and edges and the second as a polycrystalline termination with a parallel growth of transparent and bright crystals. The quality of the sample is good for the locality.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (1952)

Specimen size: 3.2 × 2.3 × 1.4 cm = 1.26” × 0.91” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Epidote
 

RH63N4: From a very uncommon locality, an Alpine classic. The crystal, a floater, has a termination of partially chloritized faces and the other healed. Good color and luster.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (1952)

Specimen size: 3.4 × 2.6 × 1.5 cm = 1.34” × 1.02” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Epidote. Front
Front
Epidote. Rear
Rear
Epidote with Diopside
Epidote with Diopside.
 

RG58M2: Prismatic Epidote crystals with well defined faces and edges and perfect terminations with a deep color and good brilliance. On matrix.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (08/1953)

Specimen size: 4.8 × 2.9 × 2.4 cm = 1.89” × 1.14” × 0.94”

Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Epidote
 

RH86T8: Transparent crystals of Epidote on matrix, many of them doubly terminated, with an intense green color and very bright. An excellent Swiss classic.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (±1950)

Specimen size: 9.2 × 8.4 × 4.3 cm = 3.62” × 3.31” × 1.69”

Main crystal size: 1.4 × 0.6 cm = 0.55” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Epidote. Epidote.
Epidote with Byssolite
Epidote with Byssolite.
 

RH26G2: An esthetic specimen from a classic locality in which Epidote is uncommon. Crystals are prismatic, well terminated and some of them are transparent. They are in a matrix with a fibrous silicate, probably Actinolite, variety Byssolite. The specimen was purchased by Folch from Joseph Levy, in Disla (Disentis) in 1949.
Val Cavrein, Grisons  Switzerland (±1949)

Specimen size: 4.7 × 3.6 × 3 cm = 1.85” × 1.42” × 1.18”

Main crystal size: 4 × 1.6 cm = 1.57” × 0.63”

With handwritten note & record from the Folch Collection (duplicates)
Epidote
Epidote  

RR56Q5: Parallel growths with very well defined faces and edges. The piece is from an uncommon locality. On Folch’s autographed label it is mentioned that it was acquired in Switzerland in 1948.
Rotlaui Ravine, Guttannen, Hasli Valley, Bern  Switzerland (±1948)

Specimen size: 6.6 × 3.9 × 1.8 cm = 2.60” × 1.54” × 0.71”

Main crystal size: 4.2 × 2.2 cm = 1.65” × 0.87”

With handwritten note & record from the Folch Collection (duplicates)
Epidote. Front
Front
Epidote. Rear
Rear
Beryl with Quartz, Orthoclase and Muscovite
Beryl with Quartz, Orthoclase and Muscovite. Beryl with Quartz, Orthoclase and Muscovite.
 

RT6X8: This sample is really a rarity for Switzerland. The Beryl crystals, with a pale blue color, are quite well defined and on matrix, with Quartz, Orthoclase and leafy Muscovite.
Crestalunga, Bondasca Valley, Bergell Valley (Val Bregaglia; Val Bargaja), Grischun (Grisons; Graubünden)  Switzerland (1951)

Specimen size: 7.5 × 4.8 × 2.5 cm = 2.95” × 1.89” × 0.98”

Main crystal size: 3 × 1.2 cm = 1.18” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Heulandite-Ca with Scolecite
 

RP10T5: Small isolated crystals of Heulandite-Ca that are translucent and very bright, with acicular crystals of Scolecite. The sample is from a very well known classic Swiss locality where zeolites are rare.
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 7.9 × 4.7 × 2.2 cm = 3.11” × 1.85” × 0.87”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Heulandite-Ca with Scolecite. Heulandite-Ca with Scolecite.
Tinzenite with Quartz
Tinzenite with Quartz. Tinzenite with Quartz.
Tinzenite with Quartz  

RA59AB7: Tinzenite aggregates whose crystalline forms are very well defined for this rare species. They have a color between cream and orange and are on a Quartz matrix with leafy Muscovite aggregates. The sample is from the type locality for the species.
Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 7.2 × 5.5 × 4.2 cm = 2.83” × 2.17” × 1.65”

Main crystal size: 0.8 × 0.3 cm = 0.31” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Grossular (hessonite) with Clinozoisite
 

RR9M3: Elongated rhombohedral Hessonite crystals on an uncolored Clinozoisite crystal matrix.
The piece is accompanied by a handwritten label with notes from Mr. Folch.
Breithorn Mountain, Zermatt, Matter Valley, Valais  Switzerland

Specimen size: 2.7 × 2.3 × 1.7 cm = 1.06” × 0.91” × 0.67”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Grossular (hessonite) with Clinozoisite.
Vesuvianite
Vesuvianite.
 

RK10M2: One of the classic localities for the species. A group of deep brown flattened crystals, with short prism faces and pyramid faces which are intersected by the predominant pinacoidal faces.
Rimpfischwange, Zermatt, Valais  Switzerland (09/1951)

Specimen size: 3.5 × 2.8 × 1.1 cm = 1.38” × 1.10” × 0.43”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Diopside
 

RZ6F9: It seems to emerge from an old book of mineralogy, this classic group of prismatic crystals, some of them doubly-terminated, has a rich green color. It is on a green schist matrix.
Cherbadung, Binnthal  Switzerland

Specimen size: 4.2 × 3.3 × 2.5 cm = 1.65” × 1.30” × 0.98”

Main crystal size: 1.5 × 0.3 cm = 0.59” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)
Diopside. Diopside.
Hematite with epitaxial Rutile
Hematite with epitaxial Rutile.
 

RC16G6: Group of laminar crystals with very sharp edges and very visible triangular growth forms. On the faces of the Hematite there are epitaxial crystals of Rutile of intense red color. The label reveals that it was purchased in Switzerland, from Allois Curschelos of Surrein, in 1952.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1952)

Specimen size: 3.1 × 2.9 × 0.4 cm = 1.22” × 1.14” × 0.16”

With handwritten note & record from the Folch Collection (duplicates)
Hematite with Rutile
 

RQ46G0: The specimen is a classic for Switzerland. It is floating and the most evident features are the brightness, the smoothness and sharpness of faces and edges, the presence of growth lines, and the epitaxial growth of red crystals of Rutile.
The sample was acquired in a trade with the Geneva Museum in 1947.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1947)

Specimen size: 3.5 × 3 × 1.5 cm = 1.38” × 1.18” × 0.59”

With handwritten note & record from the Folch Collection (duplicates)
Hematite with Rutile. Front
Front
Hematite with Rutile. Rear
Rear
Hematite with Rutile and adularia
Hematite with Rutile and adularia.
 

RJ11G8: Nice miniature. Tabular crystals of Hematite are very sharp and they have small red epitactic crystals of Rutile. Hematite contrasts strongly with adularia matrix. On the record card there is a note as acquired by J. Hitz, in Rauris, in 1952.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1952)

Specimen size: 3.7 × 2 × 2.9 cm = 1.46” × 0.79” × 1.14”

Main crystal size: 1.1 × 0.7 cm = 0.43” × 0.28”

With handwritten note & record from the Folch Collection (duplicates)
Quartz
 

RQ13M2: This Quartz crystal stands out for the definition of its forms and its purity, transparency and incredible luster. A collector’s choice specimen.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1947)

Specimen size: 4.8 × 2.5 × 1.6 cm = 1.89” × 0.98” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Quartz.
Doubly terminated and twinned Quartz
Doubly terminated and twinned Quartz. Front
Front
Doubly terminated and twinned Quartz. Rear
Rear
 

RJ63I7: Twinned, doubly terminated crystal. The twin is very visible, an unusual thing for Quartz, because the suture crosses the front face of the prism and the opposite position of the accessory rhombohedron faces.
Wassen, Uri  Switzerland (±1980)

Specimen size: 5 × 2.9 × 2.9 cm = 1.97” × 1.14” × 1.14”

With handwritten note from the Folch Collection (duplicates)
Quartz
 

RA12S7: Group of very bright clear crystals. They are doubly terminated, with sharp polycrystalline growths and growth deformations at the base.
Oberalpstock Mountain, Strem Valley, Tavetsch, Vorderrhein Valley, Grisons  Switzerland (±1946)

Specimen size: 5.4 × 3.8 × 3 cm = 2.13” × 1.50” × 1.18”

Main crystal size: 4.2 × 2.4 cm = 1.65” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Quartz. Front
Front
Quartz. Side
Side
Doubly terminated Quartz with Hematite
Doubly terminated Quartz with Hematite. Front
Front
Doubly terminated Quartz with Hematite. Side
Side
 

RA17L3: Two crystals, one of them doubly terminated, totally clear, very bright, with Albite inclusions and Hematite and showing uncommon accessory rhombohedral oscillatory faces. From a classic Alpine area.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1954)

Specimen size: 5.6 × 3.9 × 3.7 cm = 2.20” × 1.54” × 1.46”

Main crystal size: 4.8 × 2.5 cm = 1.89” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz with Chlorite
 

RE14M5: Doubly terminated floater crystal with neat phantom growths underlined by Chlorite inclusions, especially on terminations.
Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 6 × 2.1 × 1.7 cm = 2.36” × 0.83” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz with Chlorite. Front
Front
Doubly terminated Quartz with Chlorite. Side
Side
Doubly terminated Quartz with Chlorite. Side
Side
Quartz
Quartz.
 

RJ26G2: The crystal is perfectly transparent; its faces are sharply defined, with an "Alpine" quality, on a matrix with a fibrous silicate, probably Actinolite which penetrates into the Quartz as an inclusion.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1949)

Specimen size: 6.1 × 3 × 2.5 cm = 2.40” × 1.18” × 0.98”

With handwritten note & record from the Folch Collection (duplicates)
Doubly terminated Quartz
 

RV56K0: A floater group of doubly terminated crystals with parallel growths. From the original label we deduce it was mined, more or less, around 1980.
Etzlital, Maderanertal, Silenen, Uri  Switzerland (±1980)

Specimen size: 6.2 × 3.9 × 3.2 cm = 2.44” × 1.54” × 1.26”

Main crystal size: 5.8 × 2.1 cm = 2.28” × 0.83”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz. Font
Font
Doubly terminated Quartz. Rear
Rear
Doubly terminated Quartz
Doubly terminated Quartz.
 

RL46L9: Group of doubly terminated Quartz crystals, one of them clearly dominant, with excellent transparency and good brilliance. The crystal that serves as a base seems broken but is undamaged, with curious face growths.
The piece is accompanied by a handwritten label from the Folch collection.
Voralp Valley, Uri  Switzerland

Specimen size: 7.1 × 4 × 2 cm = 2.80” × 1.57” × 0.79”

Main crystal size: 6.6 × 2.2 cm = 2.60” × 0.87”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz faden with Albite
 

RB97H0: Parallel growth of doubly terminated crystals with a very evident “faden”. On the base of the piece there is a snowy white crystal of adularia, very bright. The label has the note: Com (comprado / acquired) Sulzbach. Zürich 1947.
Bristenstock Mountain, Bristen, Reuss Valley, Uri  Switzerland (±1947)

Specimen size: 11.8 × 6.7 × 5.4 cm = 4.65” × 2.64” × 2.13”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz faden with Albite.
Quartz (variety smoky)
Quartz (variety smoky).
 

RG61M0: Group of right-handed smoky Quartz crystals, one of them clearly dominant, totally transparent, and with a deep color and excellent luster.
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5 × 2.9 × 3.2 cm = 1.97” × 1.14” × 1.26”

Main crystal size: 3.9 × 1.8 cm = 1.54” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky)
 

RC63M0: Parallel growth of right-handed and doubly terminated smoky Quartz crystals, one of them dominant, with an excellent transparency, luster and a deep color. With complex and multiple terminations.
Oberalp Pass area, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5 × 3.7 × 2.8 cm = 1.97” × 1.46” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky). Front
Front
Quartz (variety smoky). Rear
Rear
Doubly terminated Quartz (variety smoky) with Clinochlore
Doubly terminated Quartz (variety smoky) with Clinochlore.
 

RF8S7: Doubly terminated crystals with a scepter termination at one of its terminations, very well marked by an evident change of color, that changes to white.
Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5.2 × 2.3 × 2 cm = 2.05” × 0.91” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky) with Actinolite
 

RF11M3: Group of smoky Quartz crystals with well defined edges and very transparent and brilliant faces. Smoky color is very uniform and deep. On a matrix with fibrous Actinolite.
The piece is accompanied by a handwritten label with notes from Mr. Folch.
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5.3 × 4 × 3.1 cm = 2.09” × 1.57” × 1.22”

Main crystal size: 2.2 × 1.2 cm = 0.87” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky) with Actinolite.
Doubly terminated Quartz (variety smoky)
Doubly terminated Quartz (variety smoky). Front
Front
Doubly terminated Quartz (variety smoky). Rear
Rear
Doubly terminated Quartz (variety smoky)  

RD13M2: Group of Quartz crystals, one of them dominant, doubly terminated and with very sharp faces and edges. Although its uniform smoky tones are not very deep, the transparency is excellent. In the Folch collection card one can read that this sample, collection Nr. 4.147, was obtained by exchange in 1950 with Herr Sulzbach from Zurich (Switzerland).
Sidelangetscher, Furka Pass area, Urseren, Uri  Switzerland (±1950)

Specimen size: 5.6 × 5 × 3.7 cm = 2.20” × 1.97” × 1.46”

Main crystal size: 5.5 × 3.3 cm = 2.17” × 1.30”

With handwritten note & record from the Folch Collection (duplicates)
Quartz (variety smoky)
 

RD14V5: Group of extraordinarily transparent and bright crystals of Quartz, slightly smoky and with a curious double termination that resembles a pyramidal dome.
The sample is with a label that we'll send to the buyer.
Oberalpstock Mountain, Strem Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 6.2 × 4.4 × 3.4 cm = 2.44” × 1.73” × 1.34”

Main crystal size: 5.5 × 2.4 cm = 2.17” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky). Front
Front
Quartz (variety smoky). Rear
Rear
Quartz (variety smoky) with Hematite
Quartz (variety smoky) with Hematite. Quartz (variety smoky) with Hematite.
 

RQ27R6: Group of mostly doubly terminated crystals of Quartz. They are completely clear, very bright and are on matrix with small platy crystals of Hematite. An excellent Alpine classic.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1954)

Specimen size: 7.2 × 7 × 4.8 cm = 2.83” × 2.76” × 1.89”

Main crystal size: 4.9 × 1.8 cm = 1.93” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Smoky Quartz with Chlorite
 

RT86I2: Very well defined and superbly transparent prisms.
The specimen has been published in the magazine ‘extraLAPIS’ on page 90, number 44, "Uri"
Maderanertal, Amsteg, Uri  Switzerland (±1981)

Specimen size: 7.8 × 4.3 × 2.5 cm = 3.07” × 1.69” × 0.98”

Main crystal size: 7.8 × 2.7 cm = 3.07” × 1.06”

With handwritten note from the Folch Collection (duplicates)
Smoky Quartz with Chlorite. Front
Front
Smoky Quartz with Chlorite. Side
Side
Quartz with Chlorite inclusions
Quartz with Chlorite inclusions. Front
Front
Quartz with Chlorite inclusions. Top
Top
 

RB97P1: Group of Quartz crystals with very well defined phantom growths, underlined by the inner coatings of Chlorite. Some of the crystals are partially coated by a second generation of Quartz crystals forming rosettes and very clear and bright small crystals.
Viaplana, Sils, Thusis, Domleschg, Hinterrhein Valley, Grisons  Switzerland

Specimen size: 6.8 × 4.3 × 5.4 cm = 2.68” × 1.69” × 2.13”

Main crystal size: 4.6 × 1.4 cm = 1.81” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Quartz with Chlorite
 

RC6S7: Aggregate of very bright and transparent crystals with chloritized surfaces near the terminal areas.
Bristenstock Mountain, Bristen, Reuss Valley, Uri  Switzerland (±1948)

Specimen size: 6.9 × 4.6 × 5.9 cm = 2.72” × 1.81” × 2.32”

Main crystal size: 3.2 × 1.5 cm = 1.26” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Quartz with Chlorite. Front
Front
Quartz with Chlorite. Top
Top
Quartz with Epidote inclusions
Quartz with Epidote inclusions.
 

RM12T5: Group of sharp, clear and colorless crystals that are very bright and have acicular inclusions of green Epidote at their base.
Göscheneralp, Göschenen Valley, Göschenen, Reuss Valley, Uri  Switzerland

Specimen size: 8 × 4.7 × 3.3 cm = 3.15” × 1.85” × 1.30”

Main crystal size: 5.3 × 2.6 cm = 2.09” × 1.02”

With handwritten note from the Folch Collection (duplicates)
Quartz with Chlorite and Albite
 

RT14T5: A single crystal of Quartz with very well defined faces and edges, with very small inclusions of Chlorite and a small matrix of Albite.
Grimsel, Hasli Valley, Bern  Switzerland (±1948)

Specimen size: 8.3 × 3.4 × 3 cm = 3.27” × 1.34” × 1.18”

Main crystal size: 8.3 × 2.8 cm = 3.27” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Quartz with Chlorite and Albite. Front
Front
Quartz with Chlorite and Albite. Top
Top
Smoky Quartz with Chlorite and amphibole
Smoky Quartz with Chlorite and amphibole. Front
Front
Smoky Quartz with Chlorite and amphibole. Side
Side
 

RR66P1: Group of Quartz crystals of excellent brilliance, transparency and color, very deep. Some of the faces selectively have inclusions of Chlorite and, on the base, there also are fibrous aggregates of an indeterminate amphibole, probably Actinolite (Byssolite).
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 9.8 × 5.3 × 3.3 cm = 3.86” × 2.09” × 1.30”

Main crystal size: 3.4 × 1.1 cm = 1.34” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz with chlorite and adularia
 

RQ26X8: Floater and complete crystal with two very different terminations. One of them has simple forms and it is completely coated by chlorite, while the opposite is free of coatings and shows a parallel polycrystalline growth.
Sedrun, Tavetsch, Vorderrhein Valley, Grisons  Switzerland (±1980)

Specimen size: 11.2 × 5.5 × 4.5 cm = 4.41” × 2.17” × 1.77”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Quartz with chlorite and adularia. Doubly terminated Quartz with chlorite and adularia.
Quartz with Chlorite, adularia and Muscovite
Quartz with Chlorite, adularia and Muscovite. Front
Front
Quartz with Chlorite, adularia and Muscovite. Top
Top
Quartz with Chlorite, adularia and Muscovite.
 

RG46X8: Floater and partially doubly terminated crystal. It is transparent, with inclusions and with both terminations are coated by Chlorite.
Sedrun, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1980)

Specimen size: 11.3 × 4.4 × 3 cm = 4.45” × 1.73” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Quartz with Albite
 

RV62M2: Very curious Quartz specimen with a morphology more similar to Topaz than Quartz. Partially covered by Albite crystals, implanted on an Orthoclase (adularia) matrix.
Hospental, Urseren, Uri  Switzerland (±1952)

Specimen size: 5.7 × 4 × 3.1 cm = 2.24” × 1.57” × 1.22”

Main crystal size: 3.5 × 3.2 cm = 1.38” × 1.26”

With handwritten note from the Folch Collection (duplicates)

Fluorescence on the matrix (short and long UV)
Quartz with Albite.
Quartz with Hematite and Ankerite
Quartz with Hematite and Ankerite. Front
Front
Quartz with Hematite and Ankerite. Side
Side
 

RC63M5: Doubly terminated crystal of light smoky Quartz with one of its terminations simple and the opposite multiple. It is partially covered by Ankerite and small laminar crystals of Hematite.
Wassen, Uri  Switzerland

Specimen size: 6.2 × 4.1 × 2.3 cm = 2.44” × 1.61” × 0.91”

With handwritten note from the Folch Collection (duplicates)
Quartz with Rutile
 

RQ14Q5: Very elongated crystal of Rutile, completely doubly terminated, with very well defined faces and edges and being almost completely included in a clear crystal of Quartz.
Oberalp Pass area, Tavetsch, Vorderrhein Valley, Grisons  Switzerland

Specimen size: 7.5 × 6 × 4.2 cm = 2.95” × 2.36” × 1.65”

Main crystal size: 5.2 × 1.7 cm = 2.05” × 0.67”

With handwritten note from the Folch Collection (duplicates)
Quartz with Rutile. Quartz with Rutile.
Quartz with Actinolite
Quartz with Actinolite. Quartz with Actinolite.
 

RE86R0: Doubly terminated crystal that has one of its terminations single and the opposite polycrystalline. The sample shows curious naturally corroded areas on most of its faces. In addition, a small ball of Actinolite, outside and inside the Quartz. The locality is an European classic.
Bristenstock Mountain, Bristen, Reuss Valley, Uri  Switzerland

Specimen size: 8 × 4.3 × 3.8 cm = 3.15” × 1.69” × 1.50”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky and gwindel)
 

RV46H8: A classic Alpine gwindel, Swiss in this case. The color is deep smoky and it is enhanced by the extreme transparency and luster of the sample. It is free of damage because the lower side is a neat contact.
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1980)

Specimen size: 3.9 × 3.9 × 1.5 cm = 1.54” × 1.54” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky and gwindel). Front
Front
Quartz (variety smoky and gwindel). Rear
Rear
Quartz (variety smoky and gwindel). Top
Top
Quartz (variety smoky and gwindel)
Quartz (variety smoky and gwindel). Front
Front
Quartz (variety smoky and gwindel). Rear
Rear
 

RK37F8: A doubly terminated, slightly curved, smoky, very transparent gwindel. The special thing is that, apart from its perfection, it is on a matrix on doubly terminated, but not gwindel, Quartz. This floater was bought from Kaspar Nelly (Switzerland) in March 1948.
Etzlital, Maderanertal, Silenen, Uri  Switzerland (±1948)

Specimen size: 4.8 × 4.4 × 3 cm = 1.89” × 1.73” × 1.18”

Main crystal size: 3.8 × 2.9 cm = 1.50” × 1.14”

With handwritten note & record from the Folch Collection (duplicates)
Quartz (variety smoky and gwindel) with Chlorite
 

RC47H7: Parallel aggregate with a slightly twisting (gwindel) The faces of the prism are neat and bright; meanwhile the rhombohedron is rough and matte due to Chlorite inclusions. The specimen entered the Folch collection through an exchange in 1947.
Drum Tobel, Sedrun, Tujetsch (Tavetsch), Grischun (Grisons; Graubünden)  Switzerland (±1940)

Specimen size: 5.3 × 5.2 × 2.7 cm = 2.09” × 2.05” × 1.06”

With handwritten note & record from the Folch Collection (duplicates)
Quartz (variety smoky and gwindel) with Chlorite. Front
Front
Quartz (variety smoky and gwindel) with Chlorite. Top
Top
Quartz (variety smoky and gwindel)
Quartz (variety smoky and gwindel). Front
Front
Quartz (variety smoky and gwindel). Top
Top
 

RL96H9: Some groups formed by subparallel growths of prismatic crystals are referred to as gwindels. In this one the smoky color is not deep but the crystals are clear and bright. The locality is a classic for an Alpine gwindel.
Göscheneralp, Göschenen Valley, Göschenen, Reuss Valley, Uri  Switzerland

Specimen size: 6.5 × 4.5 × 6.8 cm = 2.56” × 1.77” × 2.68”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky and gwindel) with Chlorite
 

RB37Z4: Group of deep smoky transparent crystals with a small matrix and microcrystalline Chlorite inclusions. The aggregate shows parallel growths and a very well defined "gwindel" bend.
Ritzlihorn, Guttannen, Hasli Valley, Bern, Ritzlihorn, Guttannen, Hasli Valley, Bern  Switzerland (±1948)

Specimen size: 6.8 × 5 × 2.8 cm = 2.68” × 1.97” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety smoky and gwindel) with Chlorite. Front
Front
Quartz (variety smoky and gwindel) with Chlorite. Rear
Rear
Quartz (variety gwindel) with Chlorite inclusions
Quartz (variety gwindel) with Chlorite inclusions. Front
Front
Quartz (variety gwindel) with Chlorite inclusions. Top
Top
Quartz (variety gwindel) with Chlorite inclusions  

RA50R0: Doubly terminated, partially chloritized, crystal with parallel polycrystalline terminations. The twisting (gwindel) of the crystal is especially evident on one of the main edges.
Binn Valley (Binntal), Wallis (Valais)  Switzerland (±1948)

Specimen size: 12.7 × 6.2 × 3.3 cm = 5.00” × 2.44” × 1.30”

With handwritten note & record from the Folch Collection (duplicates)
Quartz (variety "tessiner habitus")
 

RL26H7: Quartz crystal with Tessiner habit, with the typical very acute form of the faces of an uncommon rhombohedron, greatly elongated producing the piling up on the central zone of the prism which becomes progressively thicker toward the base.
Maggia Valley, Ticino (Tessin)  Switzerland (±1980)

Specimen size: 5.3 × 2.8 × 2 cm = 2.09” × 1.10” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety "tessiner habitus").
Quartz (variety smoky and "tessiner habitus")
Quartz (variety smoky and "tessiner habitus").
 

RM36H7: Quartz crystal with Tessiner habit, with the typical very acute form of the faces of an uncommon rhombohedron, greatly elongated producing the piling up of the central zone of the prism which becomes progressively thicker toward the base.
Maggia Valley, Ticino (Tessin)  Switzerland (±1980)

Specimen size: 7.5 × 2.4 × 2.4 cm = 2.95” × 0.94” × 0.94”

With handwritten note from the Folch Collection (duplicates)
Quartz
 

RJ14M3: A complete floater Quartz crystal whose faces totally consist of curious dissolution structures. Totally transparent with an excellent brilliance.
The piece is accompanied by a handwritten label with notes from Mr. Folch.
Rhône Glacier, Furka, Furka Pass area, Valais  Switzerland

Specimen size: 4 × 2.4 × 1.9 cm = 1.57” × 0.94” × 0.75”

With handwritten note from the Folch Collection (duplicates)
Quartz. Front
Front
Quartz. Rear
Rear
Quartz
Quartz. Front
Front
Quartz. Side
Side
Quartz  

RG46R6: Very transparent and bright crystal with very well defined faces and edges, with abundant cavities and curious dissolution forms. Folch acquired it from the "Mineralienkabinnet" of Schweitzer Heimatwek in Zürich.
Rhône Glacier, Furka, Furka Pass area, Valais  Switzerland (±1961)

Specimen size: 8.7 × 3.2 × 3.7 cm = 3.43” × 1.26” × 1.46”

With handwritten note from the Folch Collection (duplicates)
Quartz
 

RK49H0: A curious formation, a parallel growth of numerous crystals giving as a result the appearance of a single crystal with dissolution forms on faces and edges while retaining the excellent luster and transparency. The specimen is a floater.
Rhône Glacier, Furka, Furka Pass area, Valais  Switzerland (±1961)

Specimen size: 11.2 × 4.2 × 4.2 cm = 4.41” × 1.65” × 1.65”

With handwritten note from the Folch Collection (duplicates)
Quartz. Front
Front
Quartz. Rear
Rear
Orthoclase (variety adularia) with Chlorite
Orthoclase (variety adularia) with Chlorite.
 

RE16K4: Manebach twin of two crystals with selective inclusions of Chlorite: some of the faces have the inclusions while others are completely free of them.
Binntal, Wallis  Switzerland (1949)

Specimen size: 2.6 × 2.4 × 2.4 cm = 1.02” × 0.94” × 0.94”

Main crystal size: 1.8 × 1.8 cm = 0.71” × 0.71”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Orthoclase (variety adularia) with Chlorite
 

RD16K4: Manebach twin of two crystals with selective inclusions of Chlorite: some of the faces have the inclusions while others are completely free of them.
Binntal, Wallis  Switzerland (1949)

Specimen size: 2.7 × 2.4 × 2.4 cm = 1.06” × 0.94” × 0.94”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Orthoclase (variety adularia) with Chlorite.
Orthoclase (variety adularia) with Chlorite and Hematite
Orthoclase (variety adularia) with Chlorite and Hematite. Front
Front
Orthoclase (variety adularia) with Chlorite and Hematite. Side
Side
 

RG14K4: Parallel growth of sharp crystals of very well defined faces and edges, clean, translucent and bright on one of the sides of the sample and with Chlorite inclusions on the opposite.
Maderanertal, Uri  Switzerland

Specimen size: 3.2 × 3 × 2.4 cm = 1.26” × 1.18” × 0.94”

Main crystal size: 2.1 × 1.7 cm = 0.83” × 0.67”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Orthoclase (variety adularia) with chlorite and Hematite
 

RF16K4: Parallel growths of adularia crystals of tabular appearance, very rich in chlorite inclusions and also with very bright Hematite inclusions.
Maderanertal, Uri  Switzerland

Specimen size: 4.3 × 3.4 × 2.8 cm = 1.69” × 1.34” × 1.10”

Main crystal size: 2.2 × 1.7 cm = 0.87” × 0.67”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Orthoclase (variety adularia) with chlorite and Hematite. Front
Front
Orthoclase (variety adularia) with chlorite and Hematite. Rear
Rear
Orthoclase (variety adularia)
Orthoclase (variety adularia). Front
Front
Orthoclase (variety adularia). Side
Side
Orthoclase (variety adularia)  

RP96J3: The crystal is considerably transparent and has very well defined faces and edges. It is only partially covered by Chlorite.
The specimen is noted as purchased in 1949 and it is with a manuscript label of Folch we’ll send to the buyer.
Gerenthal, Oberwallis  Switzerland (±1949)

Specimen size: 5.7 × 5 × 2.8 cm = 2.24” × 1.97” × 1.10”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence short UV
Orthoclase (variety adularia)
 

RM6G2: A classic alpine sample (is the variety adularia). A Floater, more clear than usual with a very intense vitreous luster.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5.8 × 4 × 3.5 cm = 2.28” × 1.57” × 1.38”

With handwritten note from the Folch Collection (duplicates)

Fluorescent short UV
Orthoclase (variety adularia). Front
Front
Orthoclase (variety adularia). Rear
Rear
Orthoclase (variety adularia). Top
Top
Orthoclase (variety adularia) with Chlorite
Orthoclase (variety adularia) with Chlorite. Orthoclase (variety adularia) with Chlorite.
Orthoclase (variety adularia) with Chlorite  

RA27AE4: Floater aggregate of very sharp crystals that are translucent white with Chlorite inclusions in some areas and a small Quartz crystal. A Swiss classic of very good quality.
Tiefenbach, Urseren, Uri  Switzerland (±1949)

Specimen size: 9 × 8.7 × 5.2 cm = 3.54” × 3.43” × 2.05”

Main crystal size: 8.7 × 4 cm = 3.43” × 1.57”

Minor fluorescence long & short UV

With handwritten note from the Folch Collection (duplicates)

United Kingdom

Bornite with Chalcocite
 

RD11Z8: Aggregate of small crystals with very well defined faces and edges, and with iridescences of a dominant bluish color. A good thumbnail of an English classic.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 2.4 × 1.6 × 1.1 cm = 0.94” × 0.63” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Bornite with Chalcocite.
Chalcocite with Bornite
Chalcocite with Bornite.
Chalcocite with Bornite.
Chalcocite with Bornite  

RC12K9: Skeletal growths of Chalcocite, acompanied by parallel aggregates of small Bornite cubic crystals.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 2.4 × 2.0 × 1.4 cm = 0.94” × 0.79” × 0.55”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Chalcocite with Bornite
 

RB63J5: Excellent classic miniature. Group of prismatic crystals of very well defined faces and edges.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 2.6 × 1.9 × 1.7 cm = 1.02” × 0.75” × 0.67”

Main crystal size: 0.6 × 0.3 cm = 0.24” × 0.12”

With record from the Folch Collection (duplicates)

Minor fluorescence short UV
Chalcocite with Bornite.
Chalcocite with Bornite
Chalcocite with Bornite. Chalcocite with Bornite.
Chalcocite with Bornite  

RA86J5: Excellent classic miniature. Group of tabular pseudohexagonal crystals of very well defined faces and edges.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 3 × 2.6 × 1.7 cm = 1.18” × 1.02” × 0.67”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Cerussite (jackstraw)
 

RM96I8: The group, on matrix, is of fibrous crystals of snowy-white color and an extraordinary silky luster. This “jackstraw” is a rarity, and it is documented as acquired by Sir Arthur Russell on 1926.
Pentire Glaze Mine, Polzeath, St Minver, Wadebridge District, Cornwall  England / United Kingdom (±1926)

Specimen size: 4.4 × 4.2 × 2 cm = 1.73” × 1.65” × 0.79”

Main crystal size: 1.6 × 0.5 cm = 0.63” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Fluorescent short UV
Cerussite (jackstraw).
Cassiterite
Cassiterite. Front
Front
Cassiterite. Rear
Rear
Cassiterite  

RK36F9: The classic habit for crystals of Cassiterite from the Dolcoath mine. Very enlarged prisms with faces on the tips forming very acute pyramids. A specimen with pedigree because on its back side are both the numbers of the Folch and Sir Arthur Russell collections. The specimen is documented also with the labels from both collections.
Dolcoath Mine, Tuckingmill, Camborne, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 3.3 × 2.6 × 2.3 cm = 1.30” × 1.02” × 0.91”

Main crystal size: 0.6 × 0.2 cm = 0.24” × 0.08”

With handwritten note & record from the Folch Collection (duplicates)
Cassiterite with Zinkenite
 

RJ47F8: A group of Cassiterite twins, very typical of Cornwall and on matrix. Needle crystals of Zinkenite accompany the Cassiterite. Although the mine that it is from is not given, it is the type of specimen that is hard to find.
Cornwall  England / United Kingdom (±1926)

Specimen size: 6 × 4.8 × 2.7 cm = 2.36” × 1.89” × 1.06”

Main crystal size: 1.2 × 1.2 cm = 0.47” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Zinkenite.
Cassiterite with Zinkenite.
Chalcopyrite with Quartz
Chalcopyrite with Quartz.
Chalcopyrite with Quartz  

RM47F8: An excellent and classic example from the Tincroft Mine. A group of well defined crystals on a perfectly sized matrix. It was bought from Sir Arthur Russell in 1926.
The specimen has been published in the magazine ‘extraLAPIS’ on page 54, number 57, "Cornwall & Devon"
Tincroft Mine, Carn Brea and Tincroft United Mines, Carn Brea, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom (±1926)

Specimen size: 3.7 × 3.4 × 3.1 cm = 1.46” × 1.34” × 1.22”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

With handwritten note & record from the Folch Collection (duplicates)
Pyromorphite
Pyromorphite  

RB96F9: A group of prismatic crystals of an excellent color and a very vivid brightness.
The specimen is enriched by an old label from the Sir Arthur Russell collection (number 64)
Wheal Alfred, Phillack, Cornwall  England / United Kingdom (±1824)

Specimen size: 2.5 × 2 × 1.7 cm = 0.98” × 0.79” × 0.67”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Pyromorphite.
Pyromorphite
Pyromorphite. Font
Font
Pyromorphite. Side
Side
Pyromorphite  

RQ16K0: Prismatic crystals on matrix. The prisms are not well defined due to the fact that they are formed by aggregates of acicular crystals that give a satin luster to them. Color is good for the locality.
Cornwall  England / United Kingdom

Specimen size: 3.6 × 3.3 × 3.2 cm = 1.42” × 1.30” × 1.26”

Main crystal size: 0.8 × 0.5 cm = 0.31” × 0.20”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence with long & short UV
Pyromorphite on Quartz
Pyromorphite on Quartz  

RK26F9: Collecting is also History and this specimen, with little prismatic crystals on Quartz, is History. Originally labeled as Campilite, it was purchased by Sr. Folch in 1940.
Wheal Alfred, Phillack, Cornwall  England / United Kingdom

Specimen size: 4.8 × 4 × 2 cm = 1.89” × 1.57” × 0.79”

Main crystal size: 0.3 × 0.1 cm = 0.12” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Pyromorphite on Quartz.
Pyromorphite
Pyromorphite. Pyromorphite.
Pyromorphite  

RF14R0: Group of small crystals with rounded faces and edges, most of them almost spherical. They are light green and on a first generation of very minute brownish crystals of the same Pyromorphite, all on matrix. Often with such old samples we haven't exact information about the precise locality.
Cornwall  England / United Kingdom

Specimen size: 7.4 × 4.6 × 3.4 cm = 2.91” × 1.81” × 1.34”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Cuprite
Cuprite  

RT86M9: A classic from a really, really, classic locality. It is a group on matrix of cubic crystals that, despite the years, have retained good luster and color.
The sample was initially in the Sir Arthur Russell collection, whose label we will deliver to the buyer.
Wheal Phoenix, Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall  England / United Kingdom

Specimen size: 3.1 × 2 × 1.6 cm = 1.22” × 0.79” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Cuprite.
Cuprite
Cuprite.
Cuprite.
 

RV36F8: A miniature classic from the Wheal Phoenix Mine. The crystals are brilliant, have good color, and have perfect growth of the octahedral form, and also the cubic form in some cases. The handwritten label has ‘Russell’ written on it, so it must have come from Sir Arthur Russell, who Folch knew.
Wheal Phoenix, Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall  England / United Kingdom (±1948)

Specimen size: 3.8 × 1.9 × 1.9 cm = 1.50” × 0.75” × 0.75”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper
 

RC86H0: Another classic, with the typical appearance of the Cuprite samples from Liskeard. Crystals are octahedrons and they show two different forms, isolated on most of the piece’s surface and spherically grouped on the upper left zone. There is also native Copper on the back side of the piece.
South Caradon, Liskeard, Cornwall  England / United Kingdom (±1926)

Specimen size: 6.5 × 4.2 × 3 cm = 2.56” × 1.65” × 1.18”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Copper.
Cuprite with Copper.
Chalcosiderite
Chalcosiderite.
Chalcosiderite. Chalcosiderite.
 

RA87F8: A specimen that is especially rich in brilliant, well colored micro-crystals of this rare species. From the Parisian dealer Deyrolle.
Cornwall  England / United Kingdom

Specimen size: 6.7 × 3.5 × 4.5 cm = 2.64” × 1.38” × 1.77”

With handwritten note from the Folch Collection (duplicates)
Chalcosiderite with Quartz
Chalcosiderite with Quartz  

RE27P1: Aggregates of small very well defined crystals, very bright and of deep color filling vugs in a Quartz matrix.
The sample is from the collection of Sir Arthur Russell and previously from the collection of J.J. Couzens.
Wheal Phoenix, Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall  England / United Kingdom

Specimen size: 7.9 × 6.1 × 2 cm = 3.11” × 2.40” × 0.79”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Chalcosiderite with Quartz. Chalcosiderite with Quartz.
Olivenite
Olivenite.
Olivenite.
 

RT17F9: Acicular crystals reach a considerable length and form attractive aggregates on matrix. An interesting note to add is that the species was first described on samples from Cornwall.
Cornwall  England / United Kingdom

Specimen size: 4.9 × 3 × 2 cm = 1.93” × 1.18” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Olivenite
Olivenite  

RQ80F9: Fine specimen of this rare arsenate. Acicular crystals are grouped in very definite aggregates, with the classic olive-green color for which the mineral is named, on a Quartz matrix. Cornwall is the type locality for the species.
Cornwall  England / United Kingdom

Specimen size: 6.2 × 4.5 × 3.3 cm = 2.44” × 1.77” × 1.30”

With handwritten note from the Folch Collection (duplicates)
Olivenite.
Olivenite.
Olivenite with Malachite
Olivenite with Malachite.
Olivenite with Malachite.
Olivenite with Malachite  

FY48J6: Radial groups of acicular crystals with the olive color characteristic of the species. The sample also has concretions of Malachite and it is on matrix.
The sample has all the virtues we love on best Folch’s specimens. Presence, classic taste and pedigree, enhanced by the labels of Sir Arthur Russell collection and, originally, from Lady Elizabeth Anne Coxe Hippisley collection.
Wheal Gorland, Saint Day, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 8.2 × 4.5 × 4.6 cm = 3.23” × 1.77” × 1.81”

Main crystal size: 0.4 × 0.1 cm = 0.16” × 0.04”

With handwritten note & record from the Folch Collection (duplicates)
Liroconite
 

RE92G2: Type locality. Crystals are very numerous, most of them well developed and some with deformations and contacts (but no damage). They have two very different colors, the typical blue and the greenish, much less common.
Wheal Gorland, Saint Day, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom

Specimen size: 8.5 × 7.8 × 6.8 cm = 3.35” × 3.07” × 2.68”

Main crystal size: 0.5 × 0.2 cm = 0.20” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Liroconite.
Liroconite. Liroconite.
Twinned Bournonite with Quartz
Twinned Bournonite with Quartz. Front
Front
Twinned Bournonite with Quartz. Rear
Rear
Twinned Bournonite with Quartz. Top
Top
 

RY30F8: Extraordinary specimen. The cogwheel twin, along with some other smaller ones, is perfectly placed on the matrix and has maintained its brilliance over the years. The locality is also wonderful: Herodsfoot Mine. To add even more to its glory it was bought from Sir Arthur Russell in 1926.
This specimen's photo has been reviewed and published in the magazine ‘Mineralogical Record’ on page 459 in the volume 43, number 4
Herodsfoot Mine, Lanreath, Liskeard, Cornwall  England / United Kingdom (±1926)

Specimen size: 5.2 × 2.7 × 3.3 cm = 2.05” × 1.06” × 1.30”

Main crystal size: 2.5 × 1.7 cm = 0.98” × 0.67”

With handwritten note & record from the Folch Collection (duplicates)
Datolite
 

RJ57Q5: Datolite with an excellent crystallization from a very unusual locality, classic for the mineralogy of the United Kingdom, but whose specimens are today practically impossible to find.
Isle of Skye, Inner Hebrides, Highlands  Scotland / United Kingdom

Specimen size: 4.2 × 2.4 × 2.4 cm = 1.65” × 0.94” × 0.94”

Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Datolite. Datolite.

FSU


Crocoite with Vauquelinite and Quartz
Crocoite with Vauquelinite and Quartz. Crocoite with Vauquelinite and Quartz.
Crocoite with Vauquelinite and Quartz  

RD7T8: Sharp prismatic crystals of Crocoite on matrix. They are bright and with an intense color, with small Quartz crystals and growths of yellow Vauquelinite. An excellent European classic from the type locality for the species.
Berezovskoe Mines, Uspenskaya Mountain, Berezovskii, Ekaterinburg (Sverdlovsk), Sverdlovsk Oblast, Ural  Russia

Specimen size: 11.5 × 4.3 × 2.6 cm = 4.53” × 1.69” × 1.02”

Main crystal size: 1.1 × 0.2 cm = 0.43” × 0.08”

With handwritten note from the Folch Collection (duplicates)

Type locality
Topaz
 

RJ10M2: Miass is one of the best known classic localities for the species, but contrary to the usual blue color for Topaz specimens from there, this crystal shows a lively yellow color. The transparency, brilliance and definition of its crystalline forms are excellent.
Reserva Natural Ilmen, Miass, Ilmenskie Mountains, Chelyabinsk Oblast, Ural Federal District  Russia

Specimen size: 1.3 × 1.1 × 0.9 cm = 0.51” × 0.43” × 0.35”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Topaz.

MOROCCO


Azurite
Azurite. Front
Front
Azurite. Rear
Rear
Azurite  

RH11I8: The crystal is prismatic, doubly terminated and with very well defined faces and edges. The termination below, even being less marked faces, is clear and defined.
Kerrouchen, Khénifra Province, Beni Mellal-Khenifra Region  Morocco (±1978)

Specimen size: 3.7 × 2.2 × 1.5 cm = 1.46” × 0.87” × 0.59”

With handwritten note & record from the Folch Collection (duplicates)
Azurite
Azurite  

RD16I8: A curious prismatic crystal with curved faces and edges, very visible and defined. Color and luster are excellent. One of the first specimens to arrive in Europe from Touissit, a practically unknown mine at that time.
Touissit, Touissit District, Jerada Province, Oriental Region  Morocco (±1979)

Specimen size: 5.2 × 2.8 × 1.5 cm = 2.05” × 1.10” × 0.59”

With handwritten note & record from the Folch Collection (duplicates)
Azurite. Front
Front
Azurite. Rear
Rear
Skutterudite
Skutterudite.
 

RD46G2: A well developed crystal on matrix. The sample was purchased by Folch from Victor Yount in 1974 when Yount began the commerce of minerals, precisely in Spain.
Bou Azzer mining district, Drâa-Tafilalet Region  Morocco (±1971)

Specimen size: 4 × 3.8 × 2.5 cm = 1.57” × 1.50” × 0.98”

Main crystal size: 2.5 × 2 cm = 0.98” × 0.79”

With handwritten note & record from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Skutterudite with Calcite
 

RF60Q5: Cube-octahedral crystal with very well defined faces and edges, on matrix and with Calcite. A Moroccan classic.
Bou Azzer mining district, Drâa-Tafilalet Region  Morocco

Specimen size: 4.2 × 4 × 2.8 cm = 1.65” × 1.57” × 1.10”

Main crystal size: 2.2 × 2.2 cm = 0.87” × 0.87”

With handwritten note from the Folch Collection (duplicates)
Skutterudite with Calcite.
Erythrite
Erythrite. Erythrite.
 

RV59W6: Group of very sharp translucent crystals that are very bright with a really deep color and fill a vug on a matrix of metallic sulfides.
Bou Azzer mining district, Drâa-Tafilalet Region  Morocco (±1979)

Specimen size: 4.5 × 4.3 × 2.9 cm = 1.77” × 1.69” × 1.14”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Erythrite with Quartz
 

RC66I7: Prismatic crystals with excellent color and luster, on matrix. The specimen is with a label from Juan Montal, Vilafranca del Penedès, with a note with the date May 1, 1967.
Bou Azzer mining district, Drâa-Tafilalet Region  Morocco (±1967)

Specimen size: 6 × 5 × 3.8 cm = 2.36” × 1.97” × 1.50”

Main crystal size: 1.2 × 0.5 cm = 0.47” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Erythrite with Quartz. Erythrite with Quartz.
Erythrite with Roselite and Skutterudite
Erythrite with Roselite and Skutterudite. Erythrite with Roselite and Skutterudite.
Erythrite with Roselite and Skutterudite  

RF86H7: Vug of Erythrite from the finds in the second half of the seventies. Some of the crystals are erect and aerial and they are bright, transparent and have good color.
Bou Azzer mining district, Drâa-Tafilalet Region  Morocco (±1967)

Specimen size: 6.7 × 5.1 × 3.8 cm = 2.64” × 2.01” × 1.50”

Main crystal size: 0.7 × 0.5 cm = 0.28” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Roselite with Calcite
 

RX60N4: Very well defined and isolated crystals of good color and transparency, with Calcite and on matrix.
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco (±1979)

Specimen size: 3.4 × 2.4 × 1.7 cm = 1.34” × 0.94” × 0.67”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Roselite with Calcite.
Roselite with Calcite
Roselite with Calcite.
Roselite with Calcite.
 

RE14I7: Groups of crystals that have excellent color and luster. They are with small crystals of Calcite and a crystal of Quartz. On the original label a note says it was acquired November 8, 1969, by H. Sleiffer, from the Netherlands at the Zurich show.
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region  Morocco (±1969)

Specimen size: 5.4 × 3.8 × 2.4 cm = 2.13” × 1.50” × 0.94”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note & record from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Malachite with Quartz
 

RG14V0: Groups of primary Malachite crystals. They have simple and very well defined forms and are very bright. The groups are in matrix with small crystals of Quartz. It is from an old find, never repeated later, in spite of the fact that the locality has been repeatedly revisited in recent years.
Irhoud Mine, Jebel Irhoud, Youssoufia Province, Marrakesh-Safi Region  Morocco (±1979)

Specimen size: 8.2 × 7.8 × 5.2 cm = 3.23” × 3.07” × 2.05”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Malachite with Quartz. Malachite with Quartz.

AFRICA


Rhodochrosite with Gypsum
Rhodochrosite with Gypsum. Rhodochrosite with Gypsum.
 

RG67K9: Rhombohedral Rhodochrosite crystals. This habit is very unusual in the N’Chwanning Mine, excellent colour and brilliance. On a rich laminar Gypsum matrix.
N'Chwaning I Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape  South Africa (±1976)

Specimen size: 8.6 × 6.7 × 3.8 cm = 3.39” × 2.64” × 1.50”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Plancheite with Chrysocolla
 

RN59M2: A representative specimen for classic Plancheite specimens, a little bit different than the actual samples we usually see in the market. This specimen is in spherical forms constituted by radiated acicular growths with a deep blue color, partially covered by a Chrysocolla layer. A really nice miniature from past times.
Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (±1958)

Specimen size: 2 × 1.5 × 1.4 cm = 0.79” × 0.59” × 0.55”

With handwritten note from the Folch Collection (duplicates)
Plancheite with Chrysocolla.
Plancheite with Malachite
Plancheite with Malachite.
 

RM63M9: Classic sample in which the laminar growths of silky luster and greenish blue color surround a group of Malachite.
Kambove District, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire) (±1958)

Specimen size: 3.5 × 2.6 × 2.2 cm = 1.38” × 1.02” × 0.87”

With handwritten note & record from the Folch Collection (duplicates)
Chalcocite
 

RE62I8: An especially interesting miniature. The sharp crystals, with very well-defined faces and edges, form a very aerial parallel growth.
Kamoto Principal Mine (Kamoto Mine), Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 1.3 × 1 × 0.7 cm = 0.51” × 0.39” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Chalcocite.
Chalcocite
Chalcocite.
 

RF62I8: An especially interesting miniature. The sharp crystals, with very well-defined faces and edges, form a very aerial parallel growth.
Kamoto Principal Mine (Kamoto Mine), Kamoto, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba)  Democratic Republic of the Congo (Zaire)

Specimen size: 1.6 × 0.9 × 1 cm = 0.63” × 0.35” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Hopeite
 

RG47F8: The crystals have formed as two generations. In the first it has created white prisms and in the second the prisms are exceptional for their growth, brilliance and transparency. A gift from a German engineer (he does not give his name) who collected it in the mine in 1921.
Broken Hill, Kabwe  Zambia (1921)

Specimen size: 2.9 × 2 × 1.9 cm = 1.14” × 0.79” × 0.75”

Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Hopeite. Front
Front
Hopeite. Rear
Rear
Hopeite with Smithsonite
Hopeite with Smithsonite.
Hopeite with Smithsonite.
Hopeite with Smithsonite  

RH86L9: Small crystals of this rare hydrated zinc phosphate: Hopeite. Crystals show very sharp faces and edges, with some internal zoning, probably inclusions of Goethite, on a Smithsonite matrix.
The piece is accompanied by a commercial label of Burminco (George Burnham)
Broken Hill, Kabwe  Zambia (±1958)

Specimen size: 13.3 × 9.7 × 3.7 cm = 5.24” × 3.82” × 1.46”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Parahopeite
 

RQ37F8: Another classic, but the form of the crystals is much better than most of the other specimens from Broken Hill. Bought in 1948 from Gregory & Bottley, London.
Broken Hill, Kabwe  Zambia (±1948)

Specimen size: 4 × 3 × 2.5 cm = 1.57” × 1.18” × 0.98”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent long & short UV
Parahopeite. Parahopeite.
Descloizite with Calcite
Descloizite with Calcite. Descloizite with Calcite.
 

RG17M3: Very esthetic and aerial group of Descloizite crystals with deep reddish tones. Well defined faces and edges forming parallel growth which remind one of a bird's feather. On matrix.
The piece is accompanied by a handwritten label from Mr. Folch that we’ll send to the buyer.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 4.6 × 3.1 × 2.6 cm = 1.81” × 1.22” × 1.02”

Main crystal size: 0.6 × 0.4 cm = 0.24” × 0.16”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent short UV
Descloizite
 

RP64L3: Group of Descloizite crystals formed by the dipyramid faces and lateral pinacoid, both very brilliant. Specimen shows a nice reddish brown color. In the handwritten label we can read Tsumeb as the locality, but we must advise that in those years many specimens from different deposits and localities from Namibia were mislabeled as Tsumeb.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 4.7 × 3 × 2.5 cm = 1.85” × 1.18” × 0.98”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Descloizite.
Descloizite.
Descloizite
Descloizite. Descloizite.
 

RA37G6: Good group of numerous crystals. Every one of the crystals is itself a group of little crystals of delicately curved edges, a typical shape in the classic samples from Namibia. The piece seems to be stalactitic because it is hollow at its base.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia (±1973)

Specimen size: 8.4 × 6 × 4.5 cm = 3.31” × 2.36” × 1.77”

With handwritten note from the Folch Collection (duplicates)
Descloizite
Descloizite  

RQ69M3: This specimen shows two well differentiated aspects. on one side crystals resemble a bird's feather, flattened, with good luster and reddish color. On the back side one can see thick Descloizite crystals with very well defined faces and edges and completely black color.
This sample was from Scott J. Williams (Southwest Co.) of Scottsdale, Arizona. The piece is accompanied by Mr. Folch’s handwritten label and card Nr. 9520 from the Folch Collection. We’ll send both to the buyer.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia (±1965)

Specimen size: 12.2 × 9 × 7.2 cm = 4.80” × 3.54” × 2.83”

Main crystal size: 2.4 × 1.4 cm = 0.94” × 0.55”

With handwritten note & record from the Folch Collection (duplicates)
Descloizite. Frontal
Frontal
Descloizite. Rear
Rear
Descloizite.
Descloizite
Descloizite. Descloizite.
 

RG87M9: Typical sample from the most productive times in Berg Aukas, with crystals of slightly oval edges, dark and with reddish reflections. The sample, on matrix, is really a classic.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia (±1973)

Specimen size: 12.3 × 7.8 × 3.6 cm = 4.84” × 3.07” × 1.42”

Main crystal size: 1.4 × 0.8 cm = 0.55” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Descloizite
Descloizite  

RM69I2: Group of dipyramidal crystals, very well defined, bright and of a clearer color than usual. The dipyramide, as opposed to the most common on samples from Grootfontein, is thick and without curves.
The sample is with a label from John S. Albanese, from New Jersey.
Abenab Mine, Grootfontein District, Otjozondjupa Region  Namibia (±1965)

Specimen size: 7 × 5 × 2.5 cm = 2.76” × 1.97” × 0.98”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Descloizite. Descloizite.
Smithsonite
Smithsonite.
Smithsonite.
Smithsonite  

FM96L3: Group of good size and well defined rhombohedral Smithsonite crystals, nearly lenticular habit, yellowish tones and on matrix.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia (±1963)

Specimen size: 7.9 × 7.8 × 4.1 cm = 3.11” × 3.07” × 1.61”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence short UV
Smithsonite with Descloizite
 

RP86V5: Small acute rhombohedral crystals of Smithsonite with polycrystalline growths on their faces, a clear green color, with aggregates of yellow Descloizite and on matrix. The morphology of both species proves their true locality which in the autographed label of Folch appears as Tsumeb and not Berg Aukas. This confusion was very common in the past.
The sample is with a label that we'll send to the buyer.
Berg Aukas, Grootfontein District, Otjozondjupa Region  Namibia

Specimen size: 10.8 × 10.2 × 5.1 cm = 4.25” × 4.02” × 2.01”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Descloizite. Smithsonite with Descloizite.
Betafite Group
Betafite Group. Front
Front
Betafite Group. Rear
Rear
 

RA13AA2: Floater crystal with a brownish-yellow color and very well defined faces and edges, with the forms of the octahedron and the rhombohedron. Currently what was called betafite has been discredited as a species and it is now considered as a variety of pyrochlore. As with most of the members of the pyrochlore group, it is in a revision process.
Ambalahazo, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province  Madagascar (±1977)

Specimen size: 1.8 × 1.4 × 1.4 cm = 0.71” × 0.55” × 0.55”

Betafite Group
 

RD6AA2: Group of crystals, one of them clearly dominant, with a brownish-yellow color and very well defined faces and edges, with the forms of the octahedron and the rhombohedron. Currently what was called betafite has been discredited as a species and it is now considered as a variety of pyrochlore. As with most of the members of the pyrochlore group, it is in a revision process.
Ambalahazo, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province  Madagascar (±1977)

Specimen size: 2.2 × 1.9 × 2.1 cm = 0.87” × 0.75” × 0.83”

Betafite Group. Front
Front
Betafite Group. Top
Top
Betafite Group
Betafite Group. Front
Front
Betafite Group. Side
Side
 

RB6AA2: Floater crystal with a brownish-yellow color and very well defined faces and edges, with parallel growths and with the forms of the octahedron and the rhombohedron. Currently what was called betafite has been discredited as a species and it is now considered as a variety of pyrochlore. As with most of the members of the pyrochlore group, it is in a revision process.
Ambalahazo, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province  Madagascar (±1977)

Specimen size: 2.7 × 2 × 2.1 cm = 1.06” × 0.79” × 0.83”

Betafite Group
 

RC26AA2: Floater crystal with a brownish-yellow color and very well defined faces and edges, with parallel growths and with the forms of the octahedron and the rhombohedron. Currently what was called betafite has been discredited as a species and it is now considered as a variety of pyrochlore. As with most of the members of the pyrochlore group, it is in a revision process.
Ambalahazo, Fidirana Commune, Betafo District, Vakinankaratra Region, Antananarivo Province  Madagascar (±1977)

Specimen size: 3.2 × 2.5 × 2.9 cm = 1.26” × 0.98” × 1.14”

Betafite Group. Front
Front
Betafite Group. Side
Side

Tsumeb

Twinned Cerussite
Twinned Cerussite.
Twinned Cerussite  

RK96F9: Showing the smoky tones and the transparency of the best Cerussites from Tsumeb. On the front the twin plane is clearly seen.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1963)

Specimen size: 3 × 2.8 × 2.4 cm = 1.18” × 1.10” × 0.94”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence short UV
Cerussite
Cerussite  

RN16G2: A cyclic twin (very uncommon from Tsumeb and very similar to specimens from Mibladen) with polysynthetic growth. This floating specimen was purchased from W. Maucher in 1953.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1953)

Specimen size: 3 × 2.8 × 2.8 cm = 1.18” × 1.10” × 1.10”

With handwritten note & record from the Folch Collection (duplicates)

Intense Fluorescence long & short UV
Cerussite.
Cerussite with Duftite
Cerussite with Duftite.
Cerussite with Duftite  

RT96F9: A prismatic crystal with magnificent faces on the top and the esthetic counterpoint of spherical green aggregates of Duftite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1963)

Specimen size: 3.8 × 2.2 × 2.1 cm = 1.50” × 0.87” × 0.83”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence short UV
Cerussite
 

RK36Q5: Elongated twinned prismatic crystals. They are translucent and bright and have very well defined faces and edges.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.3 × 1.7 × 1.4 cm = 1.69” × 0.67” × 0.55”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Cerussite. Front
Front
Cerussite. Side
Side
Twinned Cerussite
Twinned Cerussite. Front
Front
Twinned Cerussite. Side
Side
Twinned Cerussite  

RQ56M3: Radial group of yellowish Cerussite cyclic twins, with very sharp faces and edges on a Limonite matrix.
This sample was purchased in 1961 in the Comtoir N. Boubée & Cie in Paris. We will send to the buyer the Boubée label, with the handwritten notes of Mr. Folch, and the card from the Folch Collection (Nr. 2429).
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1961)

Specimen size: 4.5 × 3.4 × 3 cm = 1.77” × 1.34” × 1.18”

Main crystal size: 2 × 1.3 cm = 0.79” × 0.51”

With handwritten note & record from the Folch Collection (duplicates)

Minor fluorescence short UV
Cerussite with Smithsonite
 

RY64M2: Tabular Cerussite crystals showing perfect cyclic twins. The color is slightly smoky, but with an excellent transparency and brilliance. On a rich dark Smithsonite crystal matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 5.5 × 3.7 × 3.2 cm = 2.17” × 1.46” × 1.26”

Main crystal size: 1 × 0.7 cm = 0.39” × 0.28”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Cerussite with Smithsonite. Cerussite with Smithsonite.
Cerussite with Smithsonite and Azurite
Cerussite with Smithsonite and Azurite. Cerussite with Smithsonite and Azurite.
 

RF63H8: An excellent miniature in which Cerussite forms cyclic twins. It has very well defined and bright faces free of damage. The paragenesis is interesting, with Smithsonite and Azurite on the matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.7 × 3.3 × 2.8 cm = 1.46” × 1.30” × 1.10”

Main crystal size: 2 × 1.8 cm = 0.79” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Azurite
 

FZ6K0: A floater group of two flattened prismatic crystals, of thick tabular appearance and doubly terminated, that have very bright and well defined faces and edges. Excellent miniature.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 2.5 × 2.1 × 1.4 cm = 0.98” × 0.83” × 0.55”

Main crystal size: 1.8 × 1.6 cm = 0.71” × 0.63”

With handwritten note from the Folch Collection (duplicates)
Azurite. Front
Front
Azurite. Rear
Rear
Azurite with Cerussite
Azurite with Cerussite. Azurite with Cerussite.
 

RQ62J7: Very well defined prismatic crystals, some of them doubly terminated, on a matrix very rich of small white crystals of Cerussite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 4.3 × 3.3 × 1.7 cm = 1.69” × 1.30” × 0.67”

Main crystal size: 0.8 × 0.2 cm = 0.31” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Malachite
 

RY96G6: An old sample, very attractive, in which the Malachite forms crystals of curved edges and faces giving them a nearly spherical shape. The esthetics of the piece is enhanced by the strong contrast of color between the Malachite and the lighter matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 8.2 × 6.3 × 4.8 cm = 3.23” × 2.48” × 1.89”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With handwritten note from the Folch Collection (duplicates)

Calcite intense fluorescence short UV
Malachite. Malachite.
Dioptase with Calcite
Dioptase with Calcite. Front
Front
Dioptase with Calcite. Side
Side
 

RL36G2: Very well defined crystals with perfect color and luster, partially covered by Calcite on a matrix of crystallized Dolomite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 2.9 × 2.7 × 2.4 cm = 1.14” × 1.06” × 0.94”

Main crystal size: 1.1 × 0.7 cm = 0.43” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Dioptase with Smithsonite
 

RC96F8: Complex, doubly terminated crystals on a harmonious matrix, with Smithsonite. A highly elegant miniature.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4 × 2.4 × 1.4 cm = 1.57” × 0.94” × 0.55”

Main crystal size: 1.4 × 0.8 cm = 0.55” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Dioptase with Smithsonite.
Dioptase with Calcite
Dioptase with Calcite.
 

RR26H8: An attractive sample with a lot of doubly terminated crystals, bright and with a magnificent color contrasting with the matrix of white Dolomite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.5 × 3 × 3.3 cm = 1.77” × 1.18” × 1.30”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Dioptase with Calcite
 

RG67H9: A classic. Crystals, even though small, have very well defined faces and edges and extraordinary color and luster that contrasts with the white Calcite of the matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 5 × 3.8 × 2.9 cm = 1.97” × 1.50” × 1.14”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Dioptase with Calcite. Front
Front
Dioptase with Calcite. Side
Side
Dioptase with Calcite
Dioptase with Calcite. Dioptase with Calcite.
 

RA58K4: Small crystals of Dioptase with good luster and color, partially covered by Calcite micro-crystals and on matrix of Calcite rhombohedrons.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 6.8 × 6.6 × 4.7 cm = 2.68” × 2.60” × 1.85”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)

Calcite minor fluorescence long & short UV
Dioptase with Calcite
 

RC6K9: Layer of small but very bright and good color Dioptase crystals covering a white-yellowish rhombohedral Calcite matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 7.5 × 4.4 × 3.8 cm = 2.95” × 1.73” × 1.50”

With handwritten note from the Folch Collection (duplicates)

Calcite very fluorescent long & short UV
Dioptase with Calcite.
Dioptase with Calcite.
Dioptase on Calcite
Dioptase on Calcite.
Dioptase on Calcite. Front
Front
Dioptase on Calcite. Rear
Rear
 

RD92G6: Undamaged crystals with a magnificent color and luster and some of them are doubly terminated. Beautifully positioned on a matrix of white Calcite, the piece is ideal for any collection. A great specimen.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 7.7 × 5.2 × 4.8 cm = 3.03” × 2.05” × 1.89”

Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Dioptase with Calcite
 

RG16V5: Doubly terminated crystals with very intense color and luster and on Calcite matrix.
The sample is with a label that we'll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 8 × 4.2 × 2 cm = 3.15” × 1.65” × 0.79”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent short UV & low fluorescence long UV
Dioptase with Calcite. Dioptase with Calcite.
Dioptase with Calcite
Dioptase with Calcite.
Dioptase with Calcite.
 

RB26J7: Small crystals formed by the prism and acute terminations of the rhombohedron, which selectively occupied the surface of some of the faces of the white rhombohedrons of Calcite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 8.5 × 5.4 × 5.1 cm = 3.35” × 2.13” × 2.01”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Mottramite with Calcite
 

RM64K4: Concretions and arborescent growths of Mottramite of attractive green color, on crystals of Calcite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 5.7 × 4.9 × 3 cm = 2.24” × 1.93” × 1.18”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Mottramite with Calcite.
Mottramite with Calcite.
Duftite with Calcite
Duftite with Calcite. Front
Front
Duftite with Calcite. Rear
Rear
Duftite with Calcite.
 

RD14S7: Aggregate of complex doubly terminated crystals of Calcite. They are very transparent, colorless and bright, with dendritic growths of clear green Duftite which almost completely coats the back side of the piece.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 7.2 × 4.8 × 3.8 cm = 2.83” × 1.89” × 1.50”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Smithsonite
Smithsonite  

RB26AE6: An aggregate, on matrix, of rhombohedral Smithsonite crystals with very well defined finely curved edges, they are between translucent and transparent, bright and have a very uniform pale salmon pink color.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6.3 × 5.6 × 1.8 cm = 2.48” × 2.20” × 0.71”

Main crystal size: 0.8 × 0.4 cm = 0.31” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Smithsonite. Smithsonite.
Smithsonite
Smithsonite.
Smithsonite. Smithsonite.
Smithsonite  

RG47V5: Group of crystals with very well defined faces and edges on which the forms of the rhombohedron are dominant. The crystals are translucent, with a clear cream color and have considerable size for the locality.
The sample is with a label and the collection card that we'll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 7.8 × 3 × 3.1 cm = 3.07” × 1.18” × 1.22”

Main crystal size: 1.1 × 1.1 cm = 0.43” × 0.43”

With handwritten note & record from the Folch Collection (duplicates)
Smithsonite
 

RM67P8: Group of rhombohedral crystals of good size, with very well defined faces and edges, slightly pinkish and on matrix. A classic.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 10 × 8.5 × 7.8 cm = 3.94” × 3.35” × 3.07”

Main crystal size: 0.8 × 0.7 cm = 0.31” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Smithsonite. Smithsonite.
Smithsonite with Galena
Smithsonite with Galena. Smithsonite with Galena.
 

RJ47T8: Druse of rhombohedral crystals of Smithsonite of pale pink color, more isolated and aerial than usual with Tsumeb samples. With the Smithsonite is a very well defined cuboctahedral crystal of Galena partially coated by Smithsonite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 10.4 × 6.5 × 4.5 cm = 4.09” × 2.56” × 1.77”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Smithsonite
 

RY27I7: Groups and isolated rhombohedral crystals of Smithsonite, yellow and shiny, that occupy a vug on a rocky matrix. A note on the label says it was acquired by Sr. Salada, July 25, 1973.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 11 × 10.4 × 7.6 cm = 4.33” × 4.09” × 2.99”

With handwritten note from the Folch Collection (duplicates)

Fluorescence short UV & low fluorescence long UV
Smithsonite. Front
Front
Smithsonite. Side
Side
Smithsonite.
Smithsonite
Smithsonite.
Smithsonite.
 

RA91J3: An excellent specimen, very rich in rhombohedral crystals of good color.
The sample was valued for the first time in 1973 and it is with a label of Albert Salada, from Aiguafreda, Barcelona, that we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 13.5 × 10 × 7.8 cm = 5.31” × 3.94” × 3.07”

Main crystal size: 1.1 × 0.9 cm = 0.43” × 0.35”

With handwritten note from the Folch Collection (duplicates)
Smithsonite (variety cuprian)
 

RG46F8: Extraordinary color and brilliance. The crystal definition is also magnificent.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 4 × 2.9 × 1.4 cm = 1.57” × 1.14” × 0.55”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note & record from the Folch Collection (duplicates)
Smithsonite (variety cuprian).
Smithsonite (variety cuprian)
Smithsonite (variety cuprian).
 

RL61J1: Drusy group of complex crystals. They are bright and the green color is more intense than usual on this kind of specimen.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 5.5 × 4.2 × 1.8 cm = 2.17” × 1.65” × 0.71”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Smithsonite (variety cuprian) with Calcite
 

RR48H0: A group with rhombohedral crystals of considerable size and an excellent intense green color, on a rocky matrix that make the specimen very aerial.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 6.4 × 4.6 × 2.7 cm = 2.52” × 1.81” × 1.06”

Main crystal size: 1.5 × 1.2 cm = 0.59” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Smithsonite (variety cuprian) with Calcite. Smithsonite (variety cuprian) with Calcite.
Smithsonite (variety cuprian)
Smithsonite (variety cuprian). Smithsonite (variety cuprian).
 

RJ96V5: Irregular aggregate of small crystals with complex forms. They are very bright with a yellowish green color and on matrix.
The sample is with a label that we'll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 8.4 × 6 × 3.3 cm = 3.31” × 2.36” × 1.30”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions
 

RP96V0: Group of Smithsonite crystals formed by a dominant flattened rhombohedron and poorly developed prismatic faces. The crystals are bright, translucent to transparent, they have a very intense yellow color and they are on matrix with Calcite and small crystals of Cuprite variety Chalcotrichite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 5.2 × 4.7 × 3.6 cm = 2.05” × 1.85” × 1.42”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
Smithsonite with Cuprite inclusions
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
 

RP46Q5: A group of crystals with very well defined faces and edges and clear green color, some of them with red inclusions of Cuprite. They are bright and on matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 5.6 × 4.8 × 4.4 cm = 2.20” × 1.89” × 1.73”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions
 

RM76P8: A group of crystals on matrix. They have a rounded aspect but is possible to see the dominant faces of the rhombohedron. Their yellowish green color is attractive and they have reddish shades due Cuprite inclusions.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6.7 × 4.8 × 2.5 cm = 2.64” × 1.89” × 0.98”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
Smithsonite with Cuprite inclusions
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
 

RD86K9: Druse, on matrix, of Smithsonite crystals, that look rounded. They are complex but dominated by the rhombohedron. Very atractive green-yellowish color enhanced by red Cuprite inclusions.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (07/1973)

Specimen size: 7.8 × 7.2 × 0.7 cm = 3.07” × 2.83” × 0.28”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions
 

RF47I2: Group of crystals on matrix. Those crystals, of round aspect, are complex but the rhombohedron dominates. Their color is yellowish-green, very attractive and emphasized by red inclusions of Cuprite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (25-07/1973)

Specimen size: 8 × 5.2 × 2.5 cm = 3.15” × 2.05” × 0.98”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions.
Smithsonite with Cuprite inclusions.
Smithsonite with Cuprite inclusions
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
 

RE66K9: Druse, on matrix, of Smithsonite crystals, that look rounded. They are complex but dominated by the rhombohedron. Very atractive green-yellowish color enhanced by red Cuprite inclusions.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (07/1973)

Specimen size: 8 × 7.2 × 0.7 cm = 3.15” × 2.83” × 0.28”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions
 

RP26X8: Druse of complex, equant, Smithsonite crystals. They are bright and have a greenish-yellow color that in wide areas on the sample is red due to Cuprite inclusions and coatings.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 8.1 × 5.3 × 4.2 cm = 3.19” × 2.09” × 1.65”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Smithsonite with Cuprite inclusions. Front
Front
Smithsonite with Cuprite inclusions. Side
Side
Smithsonite with Cuprite inclusions
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
 

RE96I2: A druse of complex crystals in which the rhombohedron is dominant. Crystals have a round aspect and have yellowish-green color with red inclusions of Cuprite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (25-07/1973)

Specimen size: 8.3 × 3.8 × 2.1 cm = 3.27” × 1.50” × 0.83”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Smithsonite (cadmium rich)
 

RA58G0: A rare variety of Smithsonite. The color, brightness and sharpness of crystals are excellent, and also its position on the matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 6.4 × 4.3 × 3.4 cm = 2.52” × 1.69” × 1.34”

Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Smithsonite (cadmium rich).
Smithsonite (cadmium rich). Smithsonite (cadmium rich).
Mimetite with Dolomite
Mimetite with Dolomite.
 

RZ64I8: Nice miniature. The crystals consist of the prism and steep dipyramids that form the terminations, their faces and edges are very well defined, the luster is bright and the color is extraordinarily deep so that they strongly contrast with the white Dolomite matrix.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 3.4 × 2.5 × 2.9 cm = 1.34” × 0.98” × 1.14”

Main crystal size: 0.9 × 0.4 cm = 0.35” × 0.16”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Mimetite with Duftite
 

RR12I8: Globular growths of small, very sharp, dipyramidal crystals. They have a nice yellow color and are on a matrix with green Duftite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 3.6 × 2 × 2.5 cm = 1.42” × 0.79” × 0.98”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Mimetite with Duftite.
Mimetite with Malachite
Mimetite with Malachite. Mimetite with Malachite.
 

RV16T5: Spherical growths of very acute small dipyramidal clear yellow crystals of Mimetite, with Malachite and on matrix. Different than usual for Tsumeb.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 8.8 × 6 × 5.6 cm = 3.46” × 2.36” × 2.20”

Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long UV
Wulfenite with Mimetite and Calcite
 

RF86K4: Group of tabular crystals of Wulfenite of good color and excellent luster with a curious columnar formation of Mimetite. The sample is completed with small crystals of white Calcite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 3.9 × 3.7 × 3.6 cm = 1.54” × 1.46” × 1.42”

Main crystal size: 1.3 × 1.1 cm = 0.51” × 0.43”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Wulfenite with Mimetite and Calcite. Front
Front
Wulfenite with Mimetite and Calcite. Side
Side
Wulfenite with Mimetite and Calcite.
Wulfenite with Dolomite
Wulfenite with Dolomite.
 

RP99I2: The main crystal, of considerable size and excellent sharpness, has a quite rough aspect due to a later coverage of different minerals, between them Dolomite and some small green crystals of Duftite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1979)

Specimen size: 4.6 × 4.4 × 1.7 cm = 1.81” × 1.73” × 0.67”

Main crystal size: 3.7 × 3.4 cm = 1.46” × 1.34”

With handwritten note from the Folch Collection (duplicates)
Copper with Cuprite and Calcite
 

RE86H0: A magnificent miniature. Being known from Tsumeb, Copper isn’t one of the most frequent species found there. The piece has arborescent growths, with decahedral crystals of Cuprite, all on a matrix of white crystals of Calcite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 3.2 × 2.4 × 1.9 cm = 1.26” × 0.94” × 0.75”

With handwritten note from the Folch Collection (duplicates)

Calcite fluorescent long & short UV
Copper with Cuprite and Calcite. Front
Front
Copper with Cuprite and Calcite. Top
Top
Cuprite
Cuprite.
 

RX47H7: Crystal group of very splendent luster, formed by the dominant octahedron. Because it was found long ago and still possesses its original luster, we think it can be maintained indefinitely if the sample is protected from sun light.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1969)

Specimen size: 2.4 × 2.4 × 1.8 cm = 0.94” × 0.94” × 0.71”

Main crystal size: 0.9 × 0.7 cm = 0.35” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Cuprite
 

RE96H0: A group of very bright crystals formed by the faces of the cube and the octahedron. On the bottom of the sample there is some coverage of a green mineral, perhaps Bayldonite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.1 × 2.2 × 0.9 cm = 1.22” × 0.87” × 0.35”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite.
Cuprite with Calcite
Cuprite with Calcite.
 

RV37H7: Crystal group of very splendent luster and excellent color formed by the cube and the octahedron and partially covered by Calcite. Because it was found long ago and still possesses its original luster, we think it can be maintained indefinitely if the sample is protected from sun light.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1969)

Specimen size: 3.2 × 2.3 × 1.5 cm = 1.26” × 0.91” × 0.59”

Main crystal size: 0.5 × 0.5 cm = 0.20” × 0.20”

With record from the Folch Collection (duplicates)
Cuprite with Malachite and Calcite
 

RY16H0: A group of very bright crystals formed by the faces of the cube and the octahedron. On the upper part of the sample there is a little coverage of Calcite with Malachite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.7 × 2.5 × 1.3 cm = 1.46” × 0.98” × 0.51”

Main crystal size: 0.4 × 0.2 cm = 0.16” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Malachite and Calcite.
Cuprite with Malachite and Calcite.
Cuprite with Calcite and Malachite
Cuprite with Calcite and Malachite. Cuprite with Calcite and Malachite.
 

RV76K9: Cuboctahedral Cuprite crystals with good color and excellent luster, accompanied by Malachite and small Calcite veins.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.5 × 3.3 × 3.2 cm = 1.77” × 1.30” × 1.26”

Main crystal size: 0.3 × 0.3 cm = 0.12” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Wulfenite
 

RQ66K9: Group of cubic Cuprite crystals with slight curves. On the Cuprite crystals one can find laminar Wulfenite crystals, which is very uncommon.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (1973)

Specimen size: 7.0 × 5.8 × 4.8 cm = 2.76” × 2.28” × 1.89”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Cuprite with Wulfenite. Cuprite with Wulfenite.
Cuprite with Wulfenite and Dolomite
Cuprite with Wulfenite and Dolomite. Cuprite with Wulfenite and Dolomite.
Cuprite with Wulfenite and Dolomite.
Cuprite with Wulfenite and Dolomite  

RM12AE6: Aggregates of cubo-octahedral Cuprite crystals on a matrix of massive Cuprite with yellowish-brown laminar Wulfenite crystals and small coatings of white Dolomite crystals.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 8.3 × 5.5 × 6.4 cm = 3.27” × 2.17” × 2.52”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

With handwritten note from the Folch Collection (duplicates)
Calcite with Cuprite (variety chalcotrichite)
 

RP12T5: Feltered growths of Chalcotrichite, the fibrous variety of Cuprite, that partially coat a group of rhombohedral crystals of Calcite.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 5.3 × 2.8 × 2.5 cm = 2.09” × 1.10” × 0.98”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence short UV
Calcite with Cuprite (variety chalcotrichite). Calcite with Cuprite (variety chalcotrichite).

BRAZIL


Phenakite
Phenakite.
 

RY58N4: Small crystal with very well defined faces and edges. It is transparent and bright and it is from probably the most classical locality for the species.
Rio Piracicaba, (São Miguel de Piracicaba), Minas Gerais  Brazil

Specimen size: 1.4 × 1.3 × 1 cm = 0.55” × 0.51” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Phenakite
 

RA12M2: From the most classic locality for the species. It is a typical flattened crystal with predominant rhombohedra very, very flattened forms as terminal faces and with poorly developed prism faces forming a very thin fillet around the crystal.
Rio Piracicaba (São Miguel de Piracicaba), Minas Gerais  Brazil

Specimen size: 2.1 × 1.5 × 1.1 cm = 0.83” × 0.59” × 0.43”

With handwritten note from the Folch Collection (duplicates)
Phenakite.
Titanite
Titanite.
 

RR59Q5: Twinned translucent crystal, transparent at the top termination and with an excellent yellow-green color.
Capelinha, Minas Gerais  Brazil (±1967)

Specimen size: 2.2 × 1.5 × 0.7 cm = 0.87” × 0.59” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Titanite
 

RQ13W6: Floater aggregate of twinned crystals. They are between translucent and transparent, very bright, and with an intense yellow color with greenish reflections.
Capelinha, Minas Gerais  Brazil (±1967)

Specimen size: 4.1 × 2.5 × 1.2 cm = 1.61” × 0.98” × 0.47”

With handwritten note from the Folch Collection (duplicates)
Titanite.
Rose Quartz
Rose Quartz.
 

RP56F8: A scepter growth of parallel, doubly terminated crystals on a prism of milky Quartz. The color of the rose Quartz is very pleasant, as is the form of the scepter. Mr. Martin Ehrmann, of California, gave it to Sr. Folch.
Minas Gerais  Brazil (±1964)

Specimen size: 4.4 × 2.2 × 1.6 cm = 1.73” × 0.87” × 0.63”

With handwritten note & record from the Folch Collection (duplicates)
Rose Quartz on smoky Quartz and Muscovite
 

RB47H7: The specimen is extraordinary. Crystals have very sharp faces and edges, they are bright and transparent and form an elegant crown contrasting with the smoky quartz crystal matrix. On the back, the sample is partially covered by Muscovite. We call attention especially to the extraordinary deep pink color, deeper than usual, and also the definition of most of the crystals.
Alto da Pitorra, Laranjeiras, Galiléia, Vale do Rio Doce, Minas Gerais  Brazil (±1967)

Specimen size: 8.7 × 7 × 4.4 cm = 3.43” × 2.76” × 1.73”

Main crystal size: 1.1 × 0.8 cm = 0.43” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Rose Quartz on smoky Quartz and Muscovite. Front
Front
Rose Quartz on smoky Quartz and Muscovite. Side
Side
Rose Quartz on smoky Quartz and Muscovite.
Doubly terminated Chrysoberyl
Doubly terminated Chrysoberyl. Front
Front
Doubly terminated Chrysoberyl. Top
Top
 

RV89H7: Complete cyclic twin of three interpenetrating crystals (“sixling”). It has deep yellow color and excellent luster and a considerable transparency. An excellent specimen.
Tancredo, Santa Teresa, Espirito Santo  Brazil (1964)

Specimen size: 3 × 2.1 × 2.2 cm = 1.18” × 0.83” × 0.87”

With record from the Folch Collection (duplicates)
Doubly terminated Chrysoberyl
 

RP97H7: A great twin, complete, deep yellow color and excellent luster and a considerable transparency. Original shape!
Tancredo, Santa Teresa, Espirito Santo, Sudeste Region  Brazil (1964)

Specimen size: 3.2 × 2 × 1.8 cm = 1.26” × 0.79” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Doubly terminated Chrysoberyl.
Elbaite "Watermelon"
Elbaite "Watermelon".
 

RN67F8: Before the find of watermelon specimens from the Santa Rosa Mine people had already found other ones. Sr. Folch bought this in 1964 in New York and it is a good size with a deeper color than the ones from Santa Rosa.
Governador Valadares, Minas Gerais  Brazil (±1964)

Specimen size: 3.1 × 1.5 × 1.4 cm = 1.22” × 0.59” × 0.55”

With handwritten note & record from the Folch Collection (duplicates)
Elbaite "watermelon"
 

RQ26L3: If we pay attention on the label date (1980) we could consider that this specimen must be part of the first “Watermelon” found in Santa Rosa. The crystal shows a marked color zoning and an excellent transparency and brilliance.
Santa Rosa Mine, Itambacuri, Minas Gerais  Brazil (±1980)

Specimen size: 3.6 × 0.7 × 0.7 cm = 1.42” × 0.28” × 0.28”

With handwritten note from the Folch Collection (duplicates)
Elbaite "watermelon". Front
Front
Elbaite "watermelon". Rear
Rear
Elbaite "watermelon". Top
Top
Elbaite "Watermelon"
Elbaite "Watermelon".
 

RN96H7: Prismatic crystal with an excellent termination. The color zonation is very well marked with the inner core between red and mauve and the bluish green exterior. It is curious to find this piece in the Folch collection because he purchased it before 1980, so it could be one of the first “watermelons” found at the locality.
Santa Rosa Mine, Itambacuri, Minas Gerais  Brazil (±1980)

Specimen size: 3.6 × 1 × 0.9 cm = 1.42” × 0.39” × 0.35”

With record from the Folch Collection (duplicates)
Elbaite (indicolite)
 

RR96R6: Estremely elongated crystal, with an excellent termination, with very well defined faces and edges. The crystal is very transparent and has an excellent blue color, very well defined all along the prism, with greenish tones in the terminal zone.
Golconda pegmatite, Governador Valadares, Vale do Rio Doce, Minas Gerais  Brazil (±1965)

Specimen size: 7.3 × 0.7 × 0.6 cm = 2.87” × 0.28” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Elbaite (indicolite).
Elbaite (indicolite)
Elbaite (indicolite). Front
Front
Elbaite (indicolite). Rear
Rear
 

RQ56R0: Very transparent prismatic crystal with a rough termination. The blue color is especially intense, well defined and uniform throughout most of the prism.
Golconda pegmatite, Governador Valadares, Vale do Rio Doce, Minas Gerais  Brazil (±1965)

Specimen size: 7.4 × 0.5 × 0.4 cm = 2.91” × 0.20” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Elbaite (variety rubellite) with Albite
Elbaite (variety rubellite) with Albite  

RA72J5: Crystals composed of striated prism faces and terminated by a rough and poorly defined pedion face. We specially note its very deep color.
Minas Gerais  Brazil

Specimen size: 10.9 × 3.2 × 2.9 cm = 4.29” × 1.26” × 1.14”

Main crystal size: 10.8 × 2.7 cm = 4.25” × 1.06”

With record from the Folch Collection (duplicates)
Elbaite (variety rubellite) with Albite. Front
Front
Elbaite (variety rubellite) with Albite. Side
Side
Beryl (variety aquamarine) with Albite
Beryl (variety aquamarine) with Albite. Front
Front
Beryl (variety aquamarine) with Albite. Side
Side
 

RJ93J3: Group of prismatic crystals of excellent color, a considerable size and transparency with very well defined faces and edges and small zones that present forms of dissolution.
Distrito Malacacheta, Teófilo Otoni, Minas Gerais  Brazil

Specimen size: 12.3 × 4.1 × 3 cm = 4.84” × 1.61” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Spodumene
 

RT17P8: Excellent doubly terminated floater crystal, without cleavages and with curvatures on some faces and edges. Its color varies between very pale yellow and green. The transparency is very good in the entire crystal.
Barra do Cuiete, Minas Gerais  Brazil (±1954)

Specimen size: 11.8 × 1.5 × 1 cm = 4.65” × 0.59” × 0.39”

With handwritten note from the Folch Collection (duplicates)

Minor fluorescence long & short UV
Spodumene. Front
Front
Spodumene. Rear
Rear
Spodumene (variety kunzite)
Spodumene (variety kunzite). Front
Front
Spodumene (variety kunzite). Side
Side
Spodumene (variety kunzite). Top
Top
Spodumene (variety kunzite)  

RA10H0: Doubly terminated crystal, a floater, with excellent color, luster and transparency and abundant figures of growth on the main faces. On the collection record it’s noted as acquired in Zürich from Arthur Sulzbach, September 1961.
Minas Gerais  Brazil (±1961)

Specimen size: 13.2 × 5.6 × 2 cm = 5.20” × 2.20” × 0.79”

With handwritten note & record from the Folch Collection (duplicates)

Fluorescent short UV & minor fluorescence long UV

SOUTH AMERICA (excl. Brazil)


Paravauxite
Paravauxite  

RL86K0: Very sharp, well defined and bright prismatic crystals on matrix. Registered with the Folch collection number 3754, it was previously from the A. Santos collection (1952).
Mina Siglo XX, Llallagua, Potosí  Bolivia (±1952)

Specimen size: 3.8 × 3.2 × 4 cm = 1.50” × 1.26” × 1.57”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

With handwritten note & record from the Folch Collection (duplicates)
Paravauxite. Font
Font
Paravauxite. Side
Side
Cylindrite
Cylindrite.
 

RJ96G0: An attractive and classic specimen of this rare sulphosalt in which crystals, with a typical cylindrical habit, take a very pleasant disposition, quite detached and sharp.
Poopó, Oruro  Bolivia

Specimen size: 3.8 × 3.5 × 2 cm = 1.50” × 1.38” × 0.79”

With handwritten note from the Folch Collection (duplicates)
Copper
 

RA96G2: A floating specimen with platy crystals in an arborescent growth. The locality is very well-known but specimens, especially of high quality like this, are actually very scarce.
Corocoro, Provincia Pacajes, Departamento La Paz  Bolivia (±1980)

Specimen size: 14.8 × 4 × 1.5 cm = 5.83” × 1.57” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Copper. Front
Front
Copper. Rear
Rear
Acanthite
Acanthite.
 

RY13H8: Good miniature with small crystals, which combine the cube and octahedron, and have well-defined faces and edges. Actually it is very difficult to obtain samples from this classic locality.
Copiapó Province, Atacama Region  Chile

Specimen size: 1.6 × 1.4 × 1.1 cm = 0.63” × 0.55” × 0.43”

Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”

With handwritten note from the Folch Collection (duplicates)
Acanthite
 

RL63J1: Very aerial group of complex crystals, very rich with faces and considerably bright. Although on the label the only locality is Chile, we can presume, by its characteristics, it is from Copiapó area.
The specimen is with a label from the now defunct company Suministros Escolares de Barcelona (SEC). We will send the label to the buyer.
Copiapó, Atacama  Chile

Specimen size: 2.7 × 1.3 × 0.8 cm = 1.06” × 0.51” × 0.31”

Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Acanthite.
Rhodochrosite with Manganite
Rhodochrosite with Manganite. Front
Front
Rhodochrosite with Manganite. Rear
Rear
Rhodochrosite with Manganite  

RD46Z4: Polished plate with very well defined banded growths showing a different intensity of color, from white to deep pink, and with a dark gray, almost black, Manganite base rich in Pyrite nodules.
Capillitas Mine, Andalgalá Department, Catamarca  Argentina

Specimen size: 11.5 × 8.8 × 1 cm = 4.53” × 3.46” × 0.39”

With handwritten note from the Folch Collection (duplicates)
Rhodochrosite
Rhodochrosite  

RJ47V5: The sample shows a perfectly polished surface that reveals concentric structures with a very deep color on the left, and crystalline and brecciated structures with a lighter color on the rest of the sample.
The sample is with a label and the collection card that we'll send to the buyer.
Capillitas Mine, Andalgalá Department, Catamarca  Argentina (±1960)

Specimen size: 12.3 × 8.7 × 2 cm = 4.84” × 3.43” × 0.79”

With handwritten note & record from the Folch Collection (duplicates)
Rhodochrosite.

ASIA - AUSTRALIA


Australia

Pyromorphite with Galena
Pyromorphite with Galena. Front
Front
Pyromorphite with Galena. Rear
Rear
Pyromorphite with Galena.
Pyromorphite with Galena  

RP77S7: Parallel growths of prismatic crystals, more defined than usual for Broken Hill pyromorphites, creamy yellow color and with minor Galena.
Broken Hill, Yancowinna County, New South Wales  Australia

Specimen size: 5.2 × 4.3 × 2.7 cm = 2.05” × 1.69” × 1.06”

Main crystal size: 1 × 0.8 cm = 0.39” × 0.31”

With handwritten note from the Folch Collection (duplicates)

Very fluorescent long & short UV
Molybdenite with Quartz
Molybdenite with Quartz  

RY17H0: The crystal, as usual in Molybdenite samples, is slightly deformed but it has a good part of its hexagonal outline and it is very well positioned on the Quartz matrix.
Kingsgate, New England District, New South Wales  Australia (±1920)

Specimen size: 5 × 4 × 3.2 cm = 1.97” × 1.57” × 1.26”

Main crystal size: 4 × 3.6 cm = 1.57” × 1.42”

With handwritten note & record from the Folch Collection (duplicates)
Molybdenite with Quartz.
Scholzite
Scholzite.
Scholzite.
Scholzite  

RB46L3: Classic specimen of Scholzite that could come from the last 1960s find. Sprays of white acicular crystals in a closed vug, with some inclusions of clay and on a cavernous Dolomite matrix. Specimens of this rare hydrated calcium and zinc phosphate are scarce.
Reaphook Hill, Martins Well, Finders Rangers, South Australia  Australia (±1968)

Specimen size: 6.6 × 4.5 × 2.9 cm = 2.60” × 1.77” × 1.14”

Main crystal size: 1.6 × 0.1 cm = 0.63” × 0.04”

With handwritten note from the Folch Collection (duplicates)
Zircon
 

RP10M5: The crystal is formed by the very well defined forms of a prism and a dipyramid. It is translucent and has slightly pinkish shades in some zones. The sample is of an uncommon quality for the locality.
Mud Tank, Harts Ranges, Northern Territory  Australia (±1968)

Specimen size: 2.4 × 2.1 × 1.8 cm = 0.94” × 0.83” × 0.71”

With handwritten note from the Folch Collection (duplicates)
Zircon.
Népouite
Népouite. Népouite.
 

RB13S7: The sample is a classic for the species and has a high quality due to its color, the crystalline aspect of the Népouite and the silky luster. The original label indicates that it was acquired by Folch from Deyrolle (Paris) in 1933.
  New Caledonia (±1933)

Specimen size: 9 × 7 × 2.3 cm = 3.54” × 2.76” × 0.91”

With handwritten note from the Folch Collection (duplicates)

Diopside
 

RP59V0: Very sharp crystal with neat faces and edges, translucent, and with a very deep and uniform green color. Surely one of the first (near 1980) Afghan diopsides to arrive in Europe.
Nuristan Province  Afghanistan (±1980)

Specimen size: 2.4 × 1.5 × 0.9 cm = 0.94” × 0.59” × 0.35”

With handwritten note from the Folch Collection (duplicates)
Diopside. Front
Front
Diopside. Rear
Rear
Diopside
Diopside.
 

RR8P8: Probably this is one of the first Diopside crystals from Afghanistan to arrive in Europe, due to the fact that it was obtained at the locality by Alberto Folch in 1980, as the original label says. The single crystal has very well defined faces and edges, a very deep and uniform green color and it is rather transparent.
Nuristan Province  Afghanistan (±1980)

Specimen size: 2.9 × 0.7 × 0.6 cm = 1.14” × 0.28” × 0.24”

With handwritten note from the Folch Collection (duplicates)
Diopside
 

RQ59M0: Excellent miniature. This Diopside crystal has very sharp faces and edges, also an excellent deep color and brilliance.
The handwritten Folch label indicates that it was self-collected by Mr. Folch in 1980 and we can be sure that it was one of the first Diopside specimens from this locality to come to Europe.
Nuristan Province  Afghanistan (±1980)

Specimen size: 2.9 × 1.3 × 0.8 cm = 1.14” × 0.51” × 0.31”

With handwritten note from the Folch Collection (duplicates)
Diopside.
Corundum (variety ruby)
Corundum (variety ruby).
 

TT36I8: Crystals sit on rock matrix and have a near tabular habit. Their terminations have very well marked triangular forms. Color is quite good and they have some degree of transparency, visible under a strong light.
Mysore, Chamraj  India (±1973)

Specimen size: 4.5 × 3 × 2.3 cm = 1.77” × 1.18” × 0.91”

Main crystal size: 1.8 × 1.4 cm = 0.71” × 0.55”

With handwritten note from the Folch Collection (duplicates)

Fluorescent long UV & minor fluorescence short UV
Axinite-(Fe) with Quartz pseudo Danburite
 

RM11M5: The sample is from a classic locality but, at the same time, uncommon. The crystals of Axinite-(Fe) are poorly defined but they offer the advantage of being associated with Quartz pseudomorphs after Danburite.
Obira Mine, Ono-gun, Oita, Kyushu Island  Japan

Specimen size: 4.4 × 3.3 × 1.9 cm = 1.73” × 1.30” × 0.75”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”

With handwritten note from the Folch Collection (duplicates)
Axinite-(Fe) with Quartz pseudo Danburite.
Molybdenite
Molybdenite. Front
Front
Molybdenite. Rear
Rear
 

RY87I2: The floating crystal has considerable size and it is very much defined as usual on samples of this size. On the front face is easy to see the hexagonal striations formed while the crystal grew. It is from a deposit actually that is now finished.
Shirakawamura, Gifu, Chubu, Honshu Island  Japan (±1961)

Specimen size: 6.3 × 4.6 × 3 cm = 2.48” × 1.81” × 1.18”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety amethyst)
 

RV76H7: Beautiful miniature. It is a group of crystals having an extraordinary deep color. Faces and edges are so sharp that they seem polished. The locality itself is very original.
Eonyang, Kyeongsangnamdo  South Korea (±1974)

Specimen size: 3.5 × 2.6 × 1.6 cm = 1.38” × 1.02” × 0.63”

Main crystal size: 1.2 × 0.9 cm = 0.47” × 0.35”

With handwritten note from the Folch Collection (duplicates)
Quartz (variety amethyst).
Smoky Quartz
Smoky Quartz. Front
Front
Smoky Quartz. Top
Top
 

RJ96H8: The locality is really interesting for its rarity, but we add that the sample is very esthetic, very well preserved and it has a deep smoky color, with darker inner inclusions.
Eonyang, Kyeongsangnamdo  South Korea (±1974)

Specimen size: 8 × 6 × 6.5 cm = 3.15” × 2.36” × 2.56”

Main crystal size: 6.5 × 1.5 cm = 2.56” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Scheelite doubly terminated
Scheelite doubly terminated  

RM26AE6: Very sharp floater Scheelite crystal, complete, dipyramidal and with a clear honey color, very much clearer than usual for the Korean samples that usually are dark brown.
The sample is from the Joaquín Folch duplicates collection, whose label we’ll send to the buyer.
Tae Hwa Mine, Neungam-ri, Angseong-myeon, Chungju, Chungcheongbukdo  South Korea

Specimen size: 3 × 2.8 × 2.7 cm = 1.18” × 1.10” × 1.06”

Extremely fluorescent short UV

With handwritten note from the Folch Collection (duplicates)
Scheelite doubly terminated. Front
Front
Scheelite doubly terminated. Side
Side
Scheelite with Quartz and Dolomite
Scheelite with Quartz and Dolomite. Front
Front
Scheelite with Quartz and Dolomite. Under intense light
Under intense light
Scheelite with Quartz and Dolomite. Top
Top
 

RQ73H0: Actually the pieces of Scheelite from Korea are now really rare. On this one the perfect definition of faces an edges on the pyramidal crystal and also its luster is specially interesting. The Scheelite is, at the same time with a perfectly formed crystal of Quartz, partially covered by Dolomite. To all this we must add its very original lilac-purple color, visible under a very intense light, as the picture shows.
Tae Hwa Mine, Neungam-ri, Angseong-myeon, Chungju, Chungcheongbukdo  South Korea (±1974)

Specimen size: 5.5 × 3.7 × 3.4 cm = 2.17” × 1.46” × 1.34”

Main crystal size: 3.6 × 3.5 cm = 1.42” × 1.38”

With handwritten note from the Folch Collection (duplicates)

Intense fluorescence short UV & fluorescent long UV


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