Fabre Minerals
FABRE MINERALS
High quality mineral specimens
Bringing you selected collectible minerals since 1971
Fabre Minerals


Mineral Specimens - page 19
The Folch Collection

Previous Page Previous Page Next Page Next Page

Hide minerals that are already sold

(para ver esta pαgina en espaρol)

Page bottom

Photos by Fabre Minerals

The Euro / US$ / Yen exchange rates are the official ones and we update them every week. You can check the exchange rate details by placing your cursor over the price, or by clicking on it.


Carles Curto Text: Carles Curto (curator of the Geology Museum, Barcelona ) & 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 pieces, 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 i 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, where possible, damage free. On the death of Sr. Folch, in 1984, the collection passed to his son Alberto, and when he in turn died 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, and still rather young, 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 suggested the idea of updating the collection so as to make it more up to date - since 1984 nothing new has been added and a significant gap in the minerals found since then has developed. After lots of friendly, unhurried discussions the Folch family asked me to help them with this updating process. To do this we have the luck that the collection includes 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 or simple high quality they are still good commercial specimens.

So, for the first time, the duplicate specimens from the Folch Collection will emerge into the sunlight. Each one of them has hand written notes made by Sr. Folch himself as well as, in many cases, his official label and number (in the case that they were part of the official 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).

This project will take us a long time, as the pieces 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.

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 collectors worldwide great joy, as well as increasing interest in and knowledge of the Folch collection within 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

 

Link to sold specimens from the Folch Collection 

USA


Sphalerite with Pyrite and Marcasite
Sphalerite with Pyrite and Marcasite.
Sphalerite with Pyrite and Marcasite. 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 = 4.3” × 3.3” × 1.1”

Main crystal size: 3.6 × 2.9 cm = 1.4” × 1.1”

With handwritten note & record from the Folch Collection


Order
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.
West Paterson, Passaic County, New Jersey  USA

Specimen size: 4.2 × 3.9 × 2.2 cm = 1.7” × 1.5” × 0.9”

Main crystal size: 0.8 × 0.5 cm = 0.3” × 0.2”

With handwritten note from the Folch Collection


Datolite with Quartz and Pectolite. Datolite with Quartz and Pectolite.
Order
Willemite (Troostite)
Willemite (Troostite).
Willemite (Troostite)

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

Specimen size: 2.5 × 2.2 × 1.6 cm = 1.0” × 0.9” × 0.6”

With handwritten note from the Folch Collection

Intense fluorescence short UV & fluorescent long UV

Sold
Dravite

RH6F8: This one is really for specialists. One of the few crystals of Elbaite 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.
St. Lawrence County, New York  USA (±1980)

Specimen size: 2 × 1.7 × 1.7 cm = 0.8” × 0.7” × 0.7”

With handwritten note from the Folch Collection

Fluorescent long & short UV

Dravite.
Order
Olivenite with Pitticite
Olivenite with Pitticite.
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, Pershing County, Nevada  USA (±1961)

Specimen size: 5.8 × 3.3 × 2.8 cm = 2.3” × 1.3” × 1.1”

Main crystal size: 0.4 × 0.1 cm = 0.2” × 0.0”

With handwritten note & record from the Folch Collection


Sold
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, Nevada  USA

Specimen size: 5.1 × 4.2 × 2.6 cm = 2.0” × 1.7” × 1.0”

With handwritten note from the Folch Collection


Axinite-(Mn).
Order
Linarite with Quartz
Linarite with Quartz. Front
Front
Linarite with Quartz. Rear detail
Rear detail

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, Socorro County, New Mexico  USA (±1959)

Specimen size: 5.3 × 3.2 × 1.8 cm = 2.1” × 1.3” × 0.7”

Main crystal size: 0.1 × 0.1 cm = 0.0” × 0.0”

With handwritten note from the Folch Collection


Sold

Arizona

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, Cochise County, Arizona  USA

Specimen size: 3.5 × 2.4 × 2.3 cm = 1.4” × 0.9” × 0.9”

With handwritten note from the Folch Collection

Fluorescent short UV

Copper.
Order
Copper
Copper. Front
Front
Copper. Rear
Rear
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 Pit, Ajo, Pima County, Arizona  USA (±1969)

Specimen size: 9.3 × 3.3 × 2.4 cm = 3.7” × 1.3” × 0.9”

Main crystal size: 0.5 × 0.5 cm = 0.2” × 0.2”

With handwritten note from the Folch Collection

Opal? intense fluorescence short UV & fluorescent long UV

Order
Cuprite (Chalcotrichite) with Copper

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

Specimen size: 7.7 × 6 × 5 cm = 3.0” × 2.4” × 2.0”

With handwritten note from the Folch Collection


Cuprite (Chalcotrichite) with Copper. Cuprite (Chalcotrichite) with Copper.
Order
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 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, Pima County, Arizona  USA (±1959)

Specimen size: 5.5 × 4.7 × 3.2 cm = 2.2” × 1.9” × 1.3”

With handwritten note & record from the Folch Collection


Sold
Copper

RB27I2: Dendritic growth of crystals, some of them very well defined, bright and with small coverage of Quartz.
Ray Mine, Ray District, Pinal County, Arizona  USA

Specimen size: 13.8 × 9.5 × 3 cm = 5.4” × 3.7” × 1.2”

Main crystal size: 2.1 × 0.8 cm = 0.8” × 0.3”

With handwritten note from the Folch Collection


Copper. Copper.
Order
Cuprite (Chalcotrichite) with Copper
Cuprite (Chalcotrichite) with Copper. Front
Front
Cuprite (Chalcotrichite) with Copper. Rear
Rear
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 Mine, Ray District, Pinal County, Arizona  USA (±1971)

Specimen size: 12.2 × 7.4 × 4 cm = 4.8” × 2.9” × 1.6”

With handwritten note from the Folch Collection


Sold
Wulfenite with Mimetite
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, Tiger, Pinal County, Arizona  USA (±1957)

Specimen size: 7.2 × 6.3 × 3.8 cm = 2.8” × 2.5” × 1.5”

Main crystal size: 1.3 × 1.2 cm = 0.5” × 0.5”

With handwritten note from the Folch Collection


Wulfenite with Mimetite. Front
Front
Wulfenite with Mimetite. Rear
Rear
Order
Wulfenite with Mimetite
Wulfenite with Mimetite. 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, Tiger, Pinal County, Arizona  USA (±1953)

Specimen size: 4.5 × 4.5 × 2.8 cm = 1.8” × 1.8” × 1.1”

Main crystal size: 0.9 × 0.7 cm = 0.4” × 0.3”

With handwritten note from the Folch Collection


Sold

California

Axinite-(Fe) with Anphibole

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 = 1.5” × 1.2” × 1.4”

Main crystal size: 3 × 1.4 cm = 1.2” × 0.6”

With handwritten note from the Folch Collection


Axinite-(Fe) with Anphibole. Front
Front
Axinite-(Fe) with Anphibole. Rear
Rear
Order
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, Pala District, San Diego County, California  USA (02/1974)

Specimen size: 4.1 × 1.4 × 1.2 cm = 1.6” × 0.6” × 0.5”

With handwritten note from the Folch Collection


Sold

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 = 2.0” × 1.4” × 1.2”

With handwritten note from the Folch Collection


Pyrite. Front
Front
Pyrite. Side
Side
Order
Topaz
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 = 2.2” × 1.5” × 0.6”

With handwritten note from the Folch Collection


Sold
Microcline (Amazonite) "Whitecap"
Microcline (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 = 3.2” × 2.3” × 1.3”

With handwritten note & record from the Folch Collection


Microcline (Amazonite) "Whitecap". Front
Front
Microcline (Amazonite) "Whitecap". Top
Top
Order
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, Montrose County, Colorado  USA (±1959)

Specimen size: 4.6 × 4.6 × 2.2 cm = 1.8” × 1.8” × 0.9”

With handwritten note from the Folch Collection


Sold
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.
American Tunnel, Howardsville, Silverton, Colorado  USA (±1966)

Specimen size: 2.8 × 2.6 × 1.9 cm = 1.1” × 1.0” × 0.7”

Main crystal size: 1.2 × 0.6 cm = 0.5” × 0.2”

With handwritten note from the Folch Collection


Rhodochrosite with Quartz.
Order

MEXICO - CANADA


Mexico

Vesuvianite
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.
Lago de Jaco, Sierra de la Cruz, Coahuila  Mexico (±1970)

Specimen size: 2.6 × 1.5 × 1.7 cm = 1.0” × 0.6” × 0.7”

With handwritten note from the Folch Collection


Order
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.
Lago de Jaco, Sierra de la Cruz, Coahuila  Mexico

Specimen size: 3.1 × 3 × 3.1 cm = 1.2” × 1.2” × 1.2”

With handwritten note from the Folch Collection


Euro:85 / US$121 / Yen:11330
Doubly terminated Vesuvianite.
Reservado
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.
Lago de Jaco, Sierra de la Cruz, Coahuila  Mexico (±1970)

Specimen size: 2.9 × 2.1 × 1.9 cm = 1.1” × 0.8” × 0.7”

With handwritten note from the Folch Collection


Order
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.
Mina Ojuela, Mapimν, Municipio de Mapimν, Durango  Mexico

Specimen size: 4.3 × 2.5 × 3.4 cm = 1.7” × 1.0” × 1.3”

With handwritten note from the Folch Collection

Extremely fluorescent long & short UV

Euro:85 / US$121 / Yen:11330
Adamite.
Reservado
Adamite on Limonite
Adamite on Limonite. 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.
Mina Ojuela, Mapimν, Municipio de Mapimν, Durango  Mexico

Specimen size: 4.8 × 3.5 × 2.8 cm = 1.9” × 1.4” × 1.1”

Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2”

With handwritten note from the Folch Collection

Very fluorescent long & short UV

Sold
Quartz (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, Veracruz  Mexico (±1968)

Specimen size: 9 × 5.7 × 2.9 cm = 3.5” × 2.2” × 1.1”

Main crystal size: 2.4 × 1.2 cm = 0.9” × 0.5”

With handwritten note from the Folch Collection


Quartz (Amethyst). Quartz (Amethyst).
Sold
Quartz (Amethyst)
Quartz (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.
Las Vigas, Veracruz  Mexico

Specimen size: 5.3 × 4.5 × 4.2 cm = 2.1” × 1.8” × 1.7”

Main crystal size: 3.6 × 1.2 cm = 1.4” × 0.5”

With handwritten note from the Folch Collection


Sold
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.
Los Lamentos, Chihuahua  Mexico (±1968)

Specimen size: 10.8 × 7.8 × 4.5 cm = 4.3” × 3.1” × 1.8”

Main crystal size: 0.9 × 0.8 cm = 0.4” × 0.3”

With handwritten note from the Folch Collection

Calcite fluorescent long & short UV

Wulfenite with Calcite.
Wulfenite with Calcite.
Order
Wulfenite with arsenical Vanadinite (Endlichite)
Wulfenite with arsenical Vanadinite (Endlichite). Front
Front
Wulfenite with arsenical Vanadinite (Endlichite). Side
Side
Wulfenite with arsenical Vanadinite (Endlichite). <br>

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.
Mina Ahumada, Los Lamentos, Chihuahua  Mexico

Specimen size: 12 × 8.5 × 9.5 cm = 4.7” × 3.3” × 3.7”

Main crystal size: 1.4 × 1.3 cm = 0.6” × 0.5”

With handwritten note from the Folch Collection


Sold
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.
Trinidad, Baja California  Mexico

Specimen size: 5.7 × 3.5 × 1 cm = 2.2” × 1.4” × 0.4”

With handwritten note from the Folch Collection


Axinite-(Fe).
Order
Mimetite with Calcite
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.
Velardeρa Distrito, Durango  Mexico

Specimen size: 4.3 × 3.6 × 1.7 cm = 1.7” × 1.4” × 0.7”

Main crystal size: 0.8 × 0.2 cm = 0.3” × 0.1”

With handwritten note from the Folch Collection

Calcite minor fluorescence long & short UV

Order

Canada

Diopside with Calcite
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, Hastings County, Ontario  Canada (±1960)

Specimen size: 5.1 × 4.9 × 3.1 cm = 2.0” × 1.9” × 1.2”

Main crystal size: 2.4 × 1.9 cm = 0.9” × 0.7”

With handwritten note & record from the Folch Collection

Calcite minor fluorescence long & short UV

Diopside with Calcite. Front
Front
Diopside with Calcite. Top
Top
Sold
Rhodochrosite with Analcime and Aegirine
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, Rouville County, Quιbec  Canada (±1979)

Specimen size: 2.2 × 1.9 × 1.7 cm = 0.9” × 0.7” × 0.7”

Main crystal size: 1 × 1 cm = 0.4” × 0.4”

With handwritten note from the Folch Collection


Sold

SPAIN


Sphalerite with Calcite and Dolomite

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.
Mina Las Mαnforas, Αliva, Picos de Europa, Cantabria  Spain

Specimen size: 6.7 × 5.7 × 4.7 cm = 2.6” × 2.2” × 1.9”

With handwritten note from the Folch Collection


Sphalerite with Calcite and Dolomite. Front
Front
Sphalerite with Calcite and Dolomite. Side
Side
Order
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.
Mina Las Manforas, Αliva, Picos de Europa, Cantabria  Spain (±1975)

Specimen size: 5.7 × 4.1 × 3 cm = 2.2” × 1.6” × 1.2”

Main crystal size: 1 × 0.7 cm = 0.4” × 0.3”

With handwritten note from the Folch Collection

Minor fluorescence long & short UV

Sold
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.
Mina San Miguel, Almonaster la Real, Huelva  Spain

Specimen size: 4.7 × 3.3 × 2 cm = 1.9” × 1.3” × 0.8”

Main crystal size: 1.2 × 1 cm = 0.5” × 0.4”

With handwritten note from the Folch Collection


Sphalerite.
Sold
Almandine
Almandine. Front
Front
Almandine. Side
Side
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. Marηal Lloria in 1973.
Peρa Grajera, Hornachuelos, Cσrdoba  Spain (±1973)

Specimen size: 7.6 × 6.4 × 6.5 cm = 3.0” × 2.5” × 2.6”

Main crystal size: 6.5 × 5.5 cm = 2.6” × 2.2”

With handwritten note & record from the Folch Collection


Sold
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.
Mina Raimunda, El Molar, Priorat, Tarragona  Spain (±1923)

Specimen size: 6.3 × 5.3 × 3.8 cm = 2.5” × 2.1” × 1.5”

Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1”

With handwritten note from the Folch Collection

Minor fluorescence long & short UV

Cerussite with Galena. Cerussite with Galena.
Sold
Wulfenite (Chillagite) on Barite
Wulfenite (Chillagite) on Barite.

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.
Mina Teresita, Sant Fost de Campsentelles, Vallθs Oriental, Barcelona  Spain (±1950)

Specimen size: 4.2 × 3.4 × 1.7 cm = 1.7” × 1.3” × 0.7”

With handwritten note from the Folch Collection

Minor fluorescence long & short UV

Sold
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. Joaquνn Folch on the dumps of the mine in 1960.
Mina Delfina, Ortiguero, Cabrales, Asturias  Spain (04/1960)

Specimen size: 5 × 4.7 × 3.2 cm = 2.0” × 1.9” × 1.3”

With handwritten note & record from the Folch Collection


Tyrolite. Tyrolite.
Sold
Twinned Orthoclase
Twinned Orthoclase. Front
Front
Twinned Orthoclase. Rear
Rear

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

Specimen size: 3.9 × 3 × 1.6 cm = 1.5” × 1.2” × 0.6”

With handwritten note from the Folch Collection


Sold
Pyrargyrite on Quartz

RF57K9: Well developed small crystal group with little recrystallizations on the face’s surface. On a white Quartz matrix.
Hiendelaencina, Guadalajara  Spain

Specimen size: 2.0 × 1.1 × 1.0 cm = 0.8” × 0.4” × 0.4”

Main crystal size: 0.6 × 0.6 cm = 0.2” × 0.2”

With handwritten note from the Folch Collection


Pyrargyrite on Quartz.
Sold
Cinnabar with Quartz
Cinnabar with Quartz. 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.
Pozo de San Teodoro, Almadιn, Ciudad Real  Spain (±1980)

Specimen size: 5.8 × 5 × 3.3 cm = 2.3” × 2.0” × 1.3”

Main crystal size: 0.6 × 0.6 cm = 0.2” × 0.2”

With handwritten note from the Folch Collection


Sold
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 Cσrdoba, Cσrdoba  Spain

Specimen size: 4.5 × 4.2 × 1.8 cm = 1.8” × 1.7” × 0.7”

With handwritten note from the Folch Collection


Bismuth.
Sold

PORTUGAL


Sphalerite with Chalcopyrite, Siderite, Pyrite and Muscovite
Sphalerite with Chalcopyrite, Siderite, Pyrite and Muscovite. Front
Front
Sphalerite with Chalcopyrite, Siderite, Pyrite and Muscovite. Rear
Rear

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, Beira Baixa  Portugal (±1967)

Specimen size: 5.8 × 4.5 × 5.2 cm = 2.3” × 1.8” × 2.0”

With handwritten note from the Folch Collection


Order
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, Beira Baixa  Portugal (±1982)

Specimen size: 6.6 × 5.7 × 5 cm = 2.6” × 2.2” × 2.0”

Main crystal size: 2.8 × 2.2 cm = 1.1” × 0.9”

With handwritten note from the Folch Collection


Marcasite-Arsenopyrite with Quartz and Siderite. Front
Front
Marcasite-Arsenopyrite with Quartz and Siderite. Rear
Rear
Sold
Apatite-(CaF)
Apatite-(CaF).

RM64L9: Thick tabular Apatite-(CaF) 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, Beira Baixa  Portugal (±1972)

Specimen size: 2.9 × 2 × 1.4 cm = 1.1” × 0.8” × 0.6”

With handwritten note from the Folch Collection

Intense zoned fluorescence long & short UV

Order
Apatite-(CaF) with Arsenopyrite and Muscovite

RB76K9: Thick tabular Apatite-(CaF) crystal, with excellent transparency, brilliance and color, with evident geometric zoning. On a Muscovite matrix with small Arsenopyrite crystals.
Minas da Panasqueira, Level 2, Beira Baixa  Portugal (±1972)

Specimen size: 4.2 × 3.2 × 2.0 cm = 1.7” × 1.3” × 0.8”

Main crystal size: 2.4 × 2.4 cm = 0.9” × 0.9”

With handwritten note from the Folch Collection

Fluorescent long & short UV

Apatite-(CaF) with Arsenopyrite and Muscovite.
Sold
Apatite-(CaF) with Muscovite
Apatite-(CaF) with Muscovite. Front
Front
Apatite-(CaF) 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, Beira Baixa  Portugal

Specimen size: 3.8 × 2.7 × 2.7 cm = 1.5” × 1.1” × 1.1”

With handwritten note from the Folch Collection

Zoned fluorescence long & short UV

Order
Apatite-(CaF) with Muscovite

RF66L9: This sample is a rarity. A very curious combination in one piece of green and blue to violet Apatite-(CaF) 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, Beira Baixa  Portugal

Specimen size: 5.4 × 4.8 × 2.3 cm = 2.1” × 1.9” × 0.9”

Main crystal size: 1.3 × 1.3 cm = 0.5” × 0.5”

With handwritten note from the Folch Collection

Intense zoned fluorescence long & short UV

Apatite-(CaF) with Muscovite. Apatite-(CaF) with Muscovite.
Sold
Ferberite with Muscovite and Siderite
Ferberite with Muscovite and Siderite. Front
Front
Ferberite with Muscovite and Siderite. Rear
Rear
Ferberite with Muscovite and Siderite. Top
Top

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, Beira Baixa  Portugal (±1974)

Specimen size: 6.3 × 5.3 × 1.6 cm = 2.5” × 2.1” × 0.6”

With handwritten note from the Folch Collection


Order
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, Beira Baixa  Portugal

Specimen size: 4.8 × 3.6 × 2.6 cm = 1.9” × 1.4” × 1.0”

Main crystal size: 4.8 × 2.2 cm = 1.9” × 0.9”

With handwritten note from the Folch Collection

Scheelite fluorescent long & short UV

Ferberite with Siderite. Front
Front
Ferberite with Siderite. Top
Top
Order
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, Beira Baixa  Portugal

Specimen size: 4.9 × 4.2 × 2.4 cm = 1.9” × 1.7” × 0.9”

Main crystal size: 0.8 × 0.4 cm = 0.3” × 0.2”

With handwritten note & record from the Folch Collection


Sold
Cassiterite

RH76K9: Cassiterite crystal with sharp faces and edges with a considerable size an twinned. This specimen comes from a little known Portuguese locality.
Boticas, Chaves  Portugal

Specimen size: 4.2 × 2.8 × 2.5 cm = 1.7” × 1.1” × 1.0”

With handwritten note from the Folch Collection


Cassiterite. Front
Front
Cassiterite. Side
Side
Order

EUROPE (EXCL. SPAIN AND PORTUGAL)


Austria

Orthoclase (Adular) with Clinochlore
Orthoclase (Adular) with Clinochlore.
Orthoclase (Adular) with Clinochlore. Orthoclase (Adular) with Clinochlore.

RD71M0: Two very sharp and twinned Orthoclase (Adular) crystals, with an excellent color and brilliance, with some inclusions of Clinochlore. On a matrix covered by small Adular and Quartz crystals.
The handwritten Folch label states that it was bought directly from a mountain guide in 1957.

Grossvenediger, Hohen Tauern, Salzburg  Austria (±1957)

Specimen size: 14.5 × 11.5 × 11 cm = 5.7” × 4.5” × 4.3”

Main crystal size: 4.3 × 4.3 cm = 1.7” × 1.7”

With handwritten note from the Folch Collection


Order

Germany

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, St. Andreasberg District, Harz Mountains, Niedersachsen  Germany

Specimen size: 2.6 × 2.1 × 1.4 × cm = 1.0” × 0.8” × 0.6”

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

With handwritten note from the Folch Collection


Pyrargyrite.
Order
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.
Mόnstertal, Black Forest  Germany (±1925)

Specimen size: 5.6 × 3.9 × 2.3 cm = 2.2” × 1.5” × 0.9”

Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0”

With handwritten note from the Folch Collection


Sold
Pyromorphite
Pyromorphite

RA50F8: A group of elongated crystals with the typical color for the locality, excellent brilliance, extraordinary crystal definition and good crystal size. A venerable label from S. Henson (London) accompanies it.
Bad Ems, Bad Ems District, Lahn valley, Rhineland-Palatinate  Germany (±1920)

Specimen size: 3.3 × 2.2 × 2.1 cm = 1.3” × 0.9” × 0.8”

Main crystal size: 1.8 × 0.9 cm = 0.7” × 0.4”

With handwritten note & record from the Folch Collection

Minor fluorescence long UV

Pyromorphite. Front
Front
Pyromorphite. Rear
Rear
Sold

Italy

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, Iglesiente, Cagliari, Sardegna  Italy

Specimen size: 6.8 × 6.3 × 3.9 cm = 2.7” × 2.5” × 1.5”

Main crystal size: 2.7 × 1.7 cm = 1.1” × 0.7”

With handwritten note & record from the Folch Collection

Intense fluorescence long & short UV

Order
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 = 1.5” × 1.9” × 2.1”

Main crystal size: 2 × 1.8 cm = 0.8” × 0.7”

With handwritten note from the Folch Collection

Type locality

Vesuvianite.
Vesuvianite.
Sold

Sweden

Cobaltite with Pyrrhotite
Cobaltite with Pyrrhotite. 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, Vδstmanland  Sweden

Specimen size: 6 × 4.3 × 2.8 cm = 2.4” × 1.7” × 1.1”

Main crystal size: 0.5 × 0.5 cm = 0.2” × 0.2”

With handwritten note & record from the Folch Collection


Sold

Switzerland

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 = 1.3” × 1.1” × 0.9”

With handwritten note from the Folch Collection


Titanite with Chlorite.
Order
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 = 1.3” × 0.9” × 0.6”

With handwritten note from the Folch Collection


Order
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 = 1.3” × 1.0” × 0.6”

With handwritten note from the Folch Collection


Epidote. Front
Front
Epidote. Rear
Rear
Order
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 Giuf, Tavetsch, Grisons  Switzerland

Specimen size: 9.8 × 5.3 × 3.3 cm = 3.9” × 2.1” × 1.3”

Main crystal size: 3.4 × 1.1 cm = 1.3” × 0.4”

With handwritten note from the Folch Collection


Order
Quartz with Chlorite inclusions

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 = 2.7” × 1.7” × 2.1”

Main crystal size: 4.6 × 1.4 cm = 1.8” × 0.6”

With handwritten note from the Folch Collection


Quartz with Chlorite inclusions. Front
Front
Quartz with Chlorite inclusions. Top
Top
Sold
Doubly terminated Quartz with Chlorite
Doubly terminated Quartz with Chlorite. Front
Front
Doubly terminated Quartz with Chlorite. Side
Side
Doubly terminated Quartz with Chlorite. Side
Side

RE14M5: Doubly terminated floater crystal with neat phantom growths underlined by Chlorite inclusions, especially on terminations.
Tavetsch, Vorderrhein Valley, Grisons  Switzerland

Specimen size: 6 × 2.1 × 1.7 cm = 2.4” × 0.8” × 0.7”

With handwritten note from the Folch Collection


Order
Quartz with Hematite and Ankerite

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 = 2.4” × 1.6” × 0.9”

With handwritten note from the Folch Collection


Quartz with Hematite and Ankerite. Front
Front
Quartz with Hematite and Ankerite. Side
Side
Order
Quartz
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, Tavetsch, Grisons  Switzerland (±1947)

Specimen size: 4.8 × 2.5 × 1.6 cm = 1.9” × 1.0” × 0.6”

With handwritten note from the Folch Collection


Sold
Doubly terminated smoky Quartz
Doubly terminated smoky Quartz

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 = 2.2” × 2.0” × 1.5”

Main crystal size: 5.5 × 3.3 cm = 2.2” × 1.3”

With handwritten note & record from the Folch Collection


Doubly terminated smoky Quartz. Front
Front
Doubly terminated smoky Quartz. Rear
Rear
Order
Smoky Quartz
Smoky Quartz.

RG61M0: Group of right-handed smoky Quartz crystals, one of them clearly dominant, totally transparent, and with a deep color and excellent luster.
Val Giuf, Tavetsch, Grisons  Switzerland

Specimen size: 5 × 2.9 × 3.2 cm = 2.0” × 1.1” × 1.3”

Main crystal size: 3.9 × 1.8 cm = 1.5” × 0.7”

With handwritten note from the Folch Collection


Sold
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.
Etzlithal, Uri  Switzerland (±1980)

Specimen size: 6.2 × 3.9 × 3.2 cm = 2.4” × 1.5” × 1.3”

Main crystal size: 5.8 × 2.1 cm = 2.3” × 0.8”

With handwritten note from the Folch Collection


Doubly terminated Quartz. Font
Font
Doubly terminated Quartz. Rear
Rear
Order
Quartz
Quartz. Front
Front
Quartz. Rear
Rear

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.
Rhτne Glacier, Furka, Furka Pass area, Valais  Switzerland

Specimen size: 4 × 2.4 × 1.9 cm = 1.6” × 0.9” × 0.7”

With handwritten note from the Folch Collection


Sold
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. Zόrich 1947.
Bristenstock, Uri  Switzerland (±1947)

Specimen size: 11.8 × 6.7 × 5.4 cm = 4.6” × 2.6” × 2.1”

With handwritten note from the Folch Collection


Doubly terminated Quartz "faden" with Albite.
Order
Titanite with Clinochlore
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 = 1.0” × 0.7” × 0.8”

Main crystal size: 1.2 × 0.4 cm = 0.5” × 0.2”

With handwritten note from the Folch Collection


Sold
Calcite

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 = 2.0” × 1.8” × 0.3”

With handwritten note from the Folch Collection

Minor fluorescence long & short UV

Calcite. Front
Front
Calcite. Rear
Rear
Order
Grossular (Hessonite) with Clinozoisite
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 = 1.1” × 0.9” × 0.7”

Main crystal size: 0.3 × 0.2 cm = 0.1” × 0.1”

With handwritten note from the Folch Collection


Sold
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).

Scσpi Mountain, Medel Valley, Grisons  Switzerland (±1950)

Specimen size: 4 × 2.9 × 2.4 cm = 1.6” × 1.1” × 0.9”

Main crystal size: 1.4 × 1 cm = 0.6” × 0.4”

With handwritten note & record from the Folch Collection


Axinite-(Fe) with Albite. Front
Front
Axinite-(Fe) with Albite. Top
Top
Order
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 = 1.2” × 0.8” × 0.7”

Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0”

With handwritten note & record from the Folch Collection


Sold
Orthoclase (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.
Binnental, Wallis  Switzerland (1949)

Specimen size: 2.6 × 2.4 × 2.4 cm = 1.0” × 0.9” × 0.9”

Main crystal size: 1.8 × 1.8 cm = 0.7” × 0.7”

With handwritten note from the Folch Collection

Minor fluorescence short UV

Orthoclase (Adularia) with Chlorite.
Order
Orthoclase (Adularia) with Chlorite and Hematite
Orthoclase (Adularia) with Chlorite and Hematite. Front
Front
Orthoclase (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 = 1.3” × 1.2” × 0.9”

Main crystal size: 2.1 × 1.7 cm = 0.8” × 0.7”

With handwritten note from the Folch Collection

Minor fluorescence short UV

Sold
Orthoclase (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.
Binnental, Wallis  Switzerland (1949)

Specimen size: 2.7 × 2.4 × 2.4 cm = 1.1” × 0.9” × 0.9”

With handwritten note from the Folch Collection

Minor fluorescence short UV

Orthoclase (Adularia) with Chlorite.
Order
Orthoclase (Adularia) with Chlorite and Hematite
Orthoclase (Adularia) with Chlorite and Hematite. Front
Front
Orthoclase (Adularia) with Chlorite and Hematite. Rear
Rear

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 = 1.7” × 1.3” × 1.1”

Main crystal size: 2.2 × 1.7 cm = 0.9” × 0.7”

With handwritten note from the Folch Collection

Minor fluorescence short UV

Order
Orthoclase (Adular)
Orthoclase (Adular)

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 = 2.2” × 2.0” × 1.1”

With handwritten note & record from the Folch Collection

Minor fluorescence short UV

Orthoclase (Adular). Front
Front
Orthoclase (Adular). Side
Side
Sold
Orthoclase (Adular)
Orthoclase (Adular). Front
Front
Orthoclase (Adular). Rear
Rear
Orthoclase (Adular). Top
Top

RM6G2: A classic alpine sample (is the variety Adularia). A Floater, more clear than usual with a very intense vitreous luster.
Val Cavradi  Switzerland

Specimen size: 5.8 × 4 × 3.5 cm = 2.3” × 1.6” × 1.4”

With handwritten note from the Folch Collection

Fluorescent short UV

Order

United Kingdom

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, Linkinhorne, Liskeard, Cornwall  United Kingdom

Specimen size: 7.9 × 6.1 × 2 cm = 3.1” × 2.4” × 0.8”

Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0”

With handwritten note from the Folch Collection


Chalcosiderite with Quartz. Chalcosiderite with Quartz.
Order
Cuprite
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, Linkinhorne, Liskeard, Cornwall, England  United Kingdom

Specimen size: 3.1 × 2 × 1.6 cm = 1.2” × 0.8” × 0.6”

With handwritten note from the Folch Collection


Sold
Chalcocite with Bornite

RB63J5: Excellent classic miniature. Group of prismatic crystals of very well defined faces and edges.
Carn Brea Mines, Pool, Illogan, Cornwall, England  United Kingdom

Specimen size: 2.6 × 1.9 × 1.7 cm = 1.0” × 0.7” × 0.7”

Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1”

With record from the Folch Collection

Minor fluorescence short UV

Chalcocite with Bornite.
Order
Cerussite (jackstraw)
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, St. Minver, Cornwall, England  United Kingdom (±1926)

Specimen size: 4.4 × 4.2 × 2 cm = 1.7” × 1.7” × 0.8”

Main crystal size: 1.6 × 0.5 cm = 0.6” × 0.2”

With handwritten note from the Folch Collection

Fluorescent short UV

Sold

Rumania

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, Maramures  Rumania

Specimen size: 8.3 × 6.9 × 3.3 cm = 3.3” × 2.7” × 1.3”


Euro:80 / US$114 / Yen:10660
Rhodochrosite with Quartz.
Reservado

MOROCCO


Erythrite with Quartz
Erythrite with Quartz. Erythrite with Quartz.

RC66I7: Prismatic crystals with excellent color and luster, on matrix. The specimen is with a label from Juan Montal, Vilafranca del Penedθs, with a note with the date May 1, 1967.
Bou Azzer area  Morocco (±1967)

Specimen size: 6 × 5 × 3.8 cm = 2.4” × 2.0” × 1.5”

Main crystal size: 1.2 × 0.5 cm = 0.5” × 0.2”

With handwritten note from the Folch Collection


Order
Roselite with Calcite

RX60N4: Very well defined and isolated crystals of good color and transparency, with Calcite and on matrix.
Arhbar Mine, Bou-Azzer  Morocco (±1979)

Specimen size: 3.4 × 2.4 × 1.7 cm = 1.3” × 0.9” × 0.7”

Main crystal size: 0.4 × 0.2 cm = 0.2” × 0.1”

With handwritten note from the Folch Collection


Roselite with Calcite.
Sold
Azurite
Azurite. Front
Front
Azurite. Rear
Rear
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, Oujda  Morocco (±1979)

Specimen size: 5.2 × 2.8 × 1.5 cm = 2.0” × 1.1” × 0.6”

With handwritten note & record from the Folch Collection


Sold

AFRICA


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, Kalahari, Northern Caps  South Africa (±1976)

Specimen size: 8.6 × 6.7 × 3.8 cm = 3.4” × 2.6” × 1.5”

Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1”

With handwritten note from the Folch Collection


Rhodochrosite with Gypsum. Rhodochrosite with Gypsum.
Sold
Plancheite with Chrysocolla
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, Central area, Shaba  Congo D.R. (±1958)

Specimen size: 2 × 1.5 × 1.4 cm = 0.8” × 0.6” × 0.6”

With handwritten note from the Folch Collection


Sold

Tsumeb

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  Namibia (±1973)

Specimen size: 10 × 8.5 × 7.8 cm = 3.9” × 3.3” × 3.1”

Main crystal size: 0.8 × 0.7 cm = 0.3” × 0.3”

With handwritten note from the Folch Collection


Smithsonite. Smithsonite.
Sold
Smithsonite with Cuprite inclusions
Smithsonite with Cuprite inclusions. 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  Namibia

Specimen size: 6.7 × 4.8 × 2.5 cm = 2.6” × 1.9” × 1.0”

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

With handwritten note from the Folch Collection


Euro:170 / US$242 / Yen:22670
Reservado
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  Namibia (07/1973)

Specimen size: 8.0 × 7.2 × 0.7 cm = 3.1” × 2.8” × 0.3”

Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1”

With handwritten note from the Folch Collection


Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
Order
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  Namibia (07/1973)

Specimen size: 7.8 × 7.2 × 0.7 cm = 3.1” × 2.8” × 0.3”

Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1”

With handwritten note from the Folch Collection


Order
Cuprian Smithsonite 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  Namibia (±1973)

Specimen size: 6.4 × 4.6 × 2.7 cm = 2.5” × 1.8” × 1.1”

Main crystal size: 1.5 × 1.2 cm = 0.6” × 0.5”

With handwritten note from the Folch Collection


Cuprian Smithsonite with Calcite. Cuprian Smithsonite with Calcite.
Sold
Smithsonite
Smithsonite. Front
Front
Smithsonite. Side
Side
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  Namibia (±1973)

Specimen size: 11 × 10.4 × 7.6 cm = 4.3” × 4.1” × 3.0”

With handwritten note from the Folch Collection

Fluorescence short UV & low fluorescence long UV

Order
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  Namibia (±1973)

Specimen size: 7.5 × 4.4 × 3.8 cm = 3.0” × 1.7” × 1.5”

With handwritten note from the Folch Collection

Calcite very fluorescent long & short UV

Dioptase with Calcite.
Dioptase with Calcite.
Sold
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  Namibia (±1979)

Specimen size: 4.6 × 4.4 × 1.7 cm = 1.8” × 1.7” × 0.7”

Main crystal size: 3.7 × 3.4 cm = 1.5” × 1.3”

With handwritten note from the Folch Collection


Order
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  Namibia

Specimen size: 2.5 × 2.1 × 1.4 cm = 1.0” × 0.8” × 0.6”

Main crystal size: 1.8 × 1.6 cm = 0.7” × 0.6”

With handwritten note from the Folch Collection


Azurite. Front
Front
Azurite. Rear
Rear
Sold
Malachite
Malachite. 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  Namibia (±1973)

Specimen size: 8.2 × 6.3 × 4.8 cm = 3.2” × 2.5” × 1.9”

Main crystal size: 0.4 × 0.2 cm = 0.2” × 0.1”

With handwritten note from the Folch Collection

Calcite intense fluorescence short UV

Order
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  Namibia (±1969)

Specimen size: 2.4 × 2.4 × 1.8 cm = 0.9” × 0.9” × 0.7”

Main crystal size: 0.9 × 0.7 cm = 0.4” × 0.3”

With handwritten note from the Folch Collection


Cuprite.
Sold

BRAZIL


Spodumene
Spodumene. Front
Front
Spodumene. Rear
Rear

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 = 4.6” × 0.6” × 0.4”

With handwritten note from the Folch Collection

Minor fluorescence long & short UV

Euro:210 / US$299 / Yen:28000
Reservado
Beryl (Aquamarine) with Albite

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, Teσfilo Otoni, Minas Gerais  Brazil

Specimen size: 12.3 × 4.1 × 3 cm = 4.8” × 1.6” × 1.2”

With handwritten note from the Folch Collection


Beryl (Aquamarine) with Albite. Front
Front
Beryl (Aquamarine) with Albite. Side
Side
Order
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, (Sγo Miguel de Piracicaba), Minas Gerais  Brazil

Specimen size: 1.4 × 1.3 × 1 cm = 0.6” × 0.5” × 0.4”

With handwritten note from the Folch Collection


Sold
Spodumene (Kunzite)
Spodumene (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 Zόrich from Arthur Sulzbach, September 1961.
Minas Gerais  Brazil (±1961)

Specimen size: 13.2 × 5.6 × 2 cm = 5.2” × 2.2” × 0.8”

With handwritten note & record from the Folch Collection

Fluorescent short UV & minor fluorescence long UV

Spodumene (Kunzite). Front
Front
Spodumene (Kunzite). Side
Side
Spodumene (Kunzite). Top
Top
Order
Doubly terminated Chrysoberyl
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  Brazil (1964)

Specimen size: 3.2 × 2 × 1.8 cm = 1.3” × 0.8” × 0.7”

With handwritten note from the Folch Collection


Sold

SOUTH AMERICA (EXCL. BRAZIL)


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.
Copiapσ, Atacama  Chile

Specimen size: 1.6 × 1.4 × 1.1 cm = 0.6” × 0.6” × 0.4”

Main crystal size: 0.3 × 0.2 cm = 0.1” × 0.1”

With handwritten note from the Folch Collection


Acanthite.
Order
Paravauxite
Paravauxite. Font
Font
Paravauxite. Side
Side
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, Potosν  Bolivia (±1952)

Specimen size: 3.8 × 3.2 × 4 cm = 1.5” × 1.3” × 1.6”

Main crystal size: 0.7 × 0.3 cm = 0.3” × 0.1”

With handwritten note & record from the Folch Collection


Sold

ASIA - AUSTRALIA


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  Afghanistan (±1980)

Specimen size: 2.9 × 0.7 × 0.6 cm = 1.1” × 0.3” × 0.2”

With handwritten note from the Folch Collection


Diopside.
Sold
Axinite-(Fe) with Quartz pseudo Danburite
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 = 1.7” × 1.3” × 0.7”

Main crystal size: 1 × 0.4 cm = 0.4” × 0.2”

With handwritten note from the Folch Collection


Sold


   Previous Page Previous Page Next Page Next Page  Page top

Back to Index

 
USA
US
Minerals
Mexico - Canada
Mexico & Canada
Minerals
Spain (general)
Spanish
Minerals
Spanish Fluorite
Spanish Fluorite
Portugal - Panasqueira
Portugal - Panasqueira
Rumania
Rumanian
Minerals
Europe (excl. Spain, Portugal and Rumania)
European
Minerals
FSU
FSU
Minerals
Morocco
Moroccan
Minerals
Moroccan Copper minerals
Moroccan
Copper Minerals
Africa (excl. Morocco) - Tsumeb
African
Minerals
Brazil
Brazilian
Minerals
South America (excl. Brazil)
South American
Minerals
China
Chinese
Minerals
Asia - Australia
Asia & Australia
Minerals
Express Specimens
Express
Specimens
The Jan Buma Collections
The Jan Buma
Collections
The Silvane Collection
The Silvane
Collection
  The Folch Collection
The Folch
Collection
Reference Specimens already sold
Reference Specimens
Updates
Updates
 
Home page - Minerals  About us  Client Comments  Forum  Order Form  Feedback Form  Search  
Home
page
Minerals
 About
us
 Client
Comments
 Forum Order
Form
 Feedback
Form
 Search