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

 


EUROPE (excl. Spain and Portugat)


Austria

Epidote
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)
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)
Orthoclase (variety adularia) with Clinochlore.
Orthoclase (variety adularia) with Clinochlore. Orthoclase (variety adularia) with Clinochlore.
Strontianite with Calcite
Strontianite with Calcite. Front
Front
Strontianite with Calcite. Top
Top
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 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)
Strontianite with Magnesite.
Calcite
Calcite. 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)
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
Wulfenite. Front
Front
Wulfenite. Rear
Rear
Wulfenite.

Czech Republic

Pyrargyrite with Calcite
Pyrargyrite with Calcite. 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

France

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)
Rhodochrosite. Rhodochrosite.

Germany

Hureaulite
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  

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)
Hureaulite.
Laueite
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
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
Phosphophyllite with Vivianite and Quartz. Phosphophyllite with Vivianite and Quartz.
Strengite on Quartz
Strengite on Quartz. 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)
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.
Pyromorphite.
Pyromorphite
Pyromorphite. 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 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
Pyromorphite with Calcite. Pyromorphite with Calcite.
Pyromorphite with Calcite.
Rhodochrosite
Rhodochrosite. 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)
Topaz (variety pycnite) with Zinnwaldite and Quartz
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
Topaz (variety pycnite) with Zinnwaldite and Quartz. Front
Front
Topaz (variety pycnite) with Zinnwaldite and Quartz. Side
Side
Chalcopyrite with Dolomite
Chalcopyrite with Dolomite.
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)
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.
Pyrargyrite with Siderite
Pyrargyrite with Siderite.
Pyrargyrite with Siderite.
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
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. Front
Front
Pyrargyrite. Top
Top
Pyrargyrite
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 with Calcite
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)
Pyrargyrite with Calcite. Front
Front
Pyrargyrite with Calcite. Detail seen from above
Detail seen from above
Ferberite
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
 

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)
Ferberite.

Greece

Rhodochrosite
Rhodochrosite. 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
 

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.
Rhodochrosite
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

Greenland

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)
Hidrokenoralstonita.
Hidrokenoralstonite and Thomsenolite
Hidrokenoralstonite and Thomsenolite.
Hidrokenoralstonite and Thomsenolite.
Hidrokenoralstonite and Thomsenolite.
Hidrokenoralstonite and Thomsenolite  

XM85RX: Druse of sharp Hidrokenoralstonite crystals with good terminations, together with Thomsenolite crystals, on matrix. Both species are rare halides. This very old specimen is of excellent quality and was in Joaquín Folch's collection of duplicates. We will send his handwritten label to the buyer.
Ivigtut deposit, Ivittuut, Arsuk Fjord, Sermersooq  Greenland

Specimen size: 8 × 6.8 × 4.2 cm = 3.15” × 2.68” × 1.65”

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

Type locality

Former collection Folch (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
Phosgenite with Galena
Phosgenite with Galena  

VT91AE5: Partially doubly terminated Phosgenite crystal with the very well defined prismatic and pinacoidal forms. It is translucent, has a pale brown color and it is on a matrix of granular Galena. A good European classic.
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna  Italy

Specimen size: 5.7 × 3.3 × 4.5 cm = 2.24” × 1.30” × 1.77”

Main crystal size: 2 × 1.7 cm = 0.79” × 0.67”

Fluorescent long & short UV

With handwritten note from the Folch Collection (duplicates)
Phosgenite with Galena. Phosgenite with Galena.
Vesuvianite
Vesuvianite.
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
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)
Andradite (variety demantoid).
Andradite (variety demantoid).

Noruega

Ferrohornblende
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)
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
Corundum with Oligoclase and Biotite. Corundum with Oligoclase and Biotite.
Allanite-(Ce) with Muscovite, Spessartine and perthite
Allanite-(Ce) with Muscovite, Spessartine and perthite. 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
 

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)
Allanite-(Ce) with Muscovite, Spessartine and perthite. Allanite-(Ce) with Muscovite, Spessartine and perthite.

Romania

Rhodochrosite with Quartz
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
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
Pyrrhotite.
Stibnite with Baryte
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)
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)
Sylvanite with Quartz.
Sylvanite with Quartz.

Slovak Republic

Devilline
Devilline. 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)

Slovenia

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)
Cinnabar. Cinnabar.

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