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Mineral Specimens - page 21
The Folch Collection

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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


Arizona

Cuprite with Copper
Cuprite with Copper.
Cuprite with Copper. Cuprite with Copper.
Cuprite with Copper

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

Specimen size: 6.1 × 3.6 × 3.1 cm = 2.4” × 1.4” × 1.2”

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

With handwritten note from the Folch Collection


Order
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. Cuprite (Chalcotrichite) with Copper.
Cuprite (Chalcotrichite) with Copper

RH6V0: Arborescent growths of crystals of native Copper on matrix, with mossy aggregates of very thin fibrous crystals of Cuprite (variety chalcotrichite), very bright and with deep red color.
We’ll send the Minerals Unlimited label to the buyer of the specimen.
Ray Mine, Ray district, Pinal County, Arizona  USA (±1963)

Specimen size: 6.8 × 5.5 × 2 cm = 2.7” × 2.2” × 0.8”

With handwritten note & record from the Folch Collection


Order
Cuprite

RD96V0: Arborescent growths of copper covered by cubic crystals of Cuprite, translucent, bright and vivid red in color. Of excellent quality for the locality, a great North American classic.
Ray Mine, Ray district, Pinal County, Arizona  USA (±1964)

Specimen size: 9.3 × 6 × 1.5 cm = 3.7” × 2.4” × 0.6”

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

With handwritten note from the Folch Collection


Cuprite. Cuprite.
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

Sold
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
Copper
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, 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

Order
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


Wulfenite with Mimetite. Wulfenite with Mimetite.
Sold

California

Axinite-(Fe) with Amphibole
Axinite-(Fe) with Amphibole. Front
Front
Axinite-(Fe) with Amphibole. Rear
Rear

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

Specimen size: 3.7 × 3 × 3.5 cm = 1.5” × 1.2” × 1.4”

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

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

Zincite with Franklinite and Willemite
Zincite with Franklinite and Willemite. Front
Front
Zincite with Franklinite and Willemite. Side
Side
Zincite with Franklinite and Willemite

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

Specimen size: 4.9 × 4.3 × 6 cm = 1.9” × 1.7” × 2.4”

With handwritten note from the Folch Collection

Willemite very fluorescent long & short UV

Sold
Enargite with Pyrite and Quartz

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

Specimen size: 6 × 5.2 × 3.4 cm = 2.4” × 2.0” × 1.3”

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

With handwritten note from the Folch Collection


Enargite with Pyrite and Quartz. Enargite with Pyrite and Quartz.
Order
Dravite
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

Order
Linarite with Quartz

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


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


Order

MEXICO - CANADA


Mexico

Quartz Amethsyt with Quartz and Epidote
Quartz Amethsyt with Quartz and Epidote

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

Specimen size: 7.6 × 6.8 × 3.7 cm = 3.0” × 2.7” × 1.5”

Main crystal size: 4 × 1.7 cm = 1.6” × 0.7”

With handwritten note from the Folch Collection


Quartz Amethsyt with Quartz and Epidote. Front
Front
Quartz Amethsyt with Quartz and Epidote. Rear
Rear
Order
Wulfenite with Calcite
Wulfenite with Calcite.
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.
Sierra de Los Lamentos, Ahumada, 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

Order
Wulfenite with Vanadinite (variety endlichite)

RA16H9: On this sample, a classic, we specially note the quantity of tabular crystals, their color and that they are free of damage. The coverage of the matrix is a surface of small crystals of Endlichite a highly arsenical variety of Vanadinite.
Mina Ahumada, Sierra de Los Lamentos, Ahumada, 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


Wulfenite with Vanadinite (variety endlichite). Front
Front
Wulfenite with Vanadinite (variety endlichite). Side
Side
Wulfenite with Vanadinite (variety endlichite). <br>

Sold
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
Vesuvianite

RL10P8: The single crystal is better defined than usual for this classic Mexican locality. Its morphology, perfectly distinct, consists of two prisms and a dipyramid, incomplete in the lower part of the crystal.
Sierra de Cruces, Municipio de Sierra Mojada, 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


Vesuvianite.
Sold

Canada

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

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

Sold
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


Rhodochrosite with Analcime and Aegirine.
Sold

SPAIN


Smoky Quartz with Microcline
Smoky Quartz with Microcline. Front
Front
Smoky Quartz with Microcline. Rear
Rear

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

Specimen size: 7.1 × 7 × 5.2 cm = 2.8” × 2.8” × 2.0”

Main crystal size: 6.1 × 2.3 cm = 2.4” × 0.9”

With handwritten note from the Folch Collection


Sold
Quartz with Pyrophyllite

RC10T8: Crystals of quartz with parallel growths on their terminal areas, very bright and partially coated by small crystals of Pyrophyllite.
Prat d'en Mallol, Llavorsν, Pallars Sobirΰ, Lleida  Spain (1963)

Specimen size: 9.4 × 6.9 × 6.4 cm = 3.7” × 2.7” × 2.5”

Main crystal size: 9.4 × 4.4 cm = 3.7” × 1.7”

With handwritten note from the Folch Collection

Pyrophyllite minor fluorescence long & short UV

Quartz with Pyrophyllite. Quartz with Pyrophyllite.
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
Cinnabar with Quartz

RT96R6: Small crystals of Cinnabar with very well defined faces and edges, bright and of very intense red color, on white Quartz and on matrix. On the label there is noted the catalog number 35, one of the oldest in the Folch collection.
Pozo de San Teodoro, Almadιn, Ciudad Real  Spain

Specimen size: 7.4 × 5.4 × 2.8 cm = 2.9” × 2.1” × 1.1”

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

With handwritten note from the Folch Collection


Cinnabar with Quartz. Cinnabar with Quartz.
Sold
Bismuth with Quartz
Bismuth with Quartz. Front
Front
Bismuth with Quartz. Side
Side
Bismuth with Quartz.

RB17S7: A granular massive aggregate with very bright and very well marked skeletal and feathered growths, with Quartz.
Mina La Espuela de San Miguel, Villanueva de Cσrdoba, Cσrdoba  Spain

Specimen size: 7.8 × 5.7 × 5.7 cm = 3.1” × 2.2” × 2.2”

With handwritten note from the Folch Collection


Order
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

PORTUGAL


Fluorapatite with Muscovite and Arsenopyrite
Fluorapatite with Muscovite and Arsenopyrite. Fluorapatite with Muscovite and Arsenopyrite.
Fluorapatite with Muscovite and Arsenopyrite

RX36V0: Both tabular and elongated crystals of Fluorapatite on matrix. They have a clear green color with geometric inclusions of deeper color, they are very bright and they have related crystals of Muscovite and Arsenopyrite.
Minas da Panasqueira, Beira Baixa  Portugal (±1972)

Specimen size: 9.2 × 5.7 × 3.2 cm = 3.6” × 2.2” × 1.3”

Main crystal size: 1.9 × 0.9 cm = 0.7” × 0.4”

With handwritten note & record from the Folch Collection

Fluorescent long UV & minor fluorescence short UV

Sold
Fluorapatite with Muscovite

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

Fluorapatite with Muscovite. Front
Front
Fluorapatite with Muscovite. Rear
Rear
Order
Fluorapatite with Muscovite
Fluorapatite with Muscovite. Fluorapatite with Muscovite.

RF66L9: This sample is a rarity. A very curious combination in one piece of green and blue to violet Fluorapatite crystals. With some slight pyramidal faces less transparent than the prism faces. Crystals are on a matrix.
The piece is accompanied by a handwritten label from the Folch collection.
Minas da Panasqueira, Level 2, 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

Sold
Cassiterite with Quartz and Siderite

RZ26T8: Very bright twinned crystals of Cassiterite, with neat transparency and implanted on a group of transparent Quartz crystals. We believe that this sample is not from the classic mining area of Panasqueira but from a nearby zone named “Vale da Ermida” as its appearance matches exactly the shape of the samples found there several years ago.
Vale da Ermida, Panasqueira, Beira Baixa  Portugal (±1964)

Specimen size: 8 × 5 × 6.2 cm = 3.1” × 2.0” × 2.4”

Main crystal size: 1.2 × 1.1 cm = 0.5” × 0.4”

With handwritten note from the Folch Collection


Cassiterite with Quartz and Siderite. Cassiterite with Quartz and Siderite.
Sold
Ferberite with Siderite
Ferberite with Siderite. Front
Front
Ferberite with Siderite. Side
Side

RA76T5: Parallel growth of flattened prismatic crystals with very well defined faces and edges and partially coated by small lenticular crystals of Siderite.
Minas da Panasqueira, Beira Baixa  Portugal (±1966)

Specimen size: 7.3 × 4.8 × 3.8 cm = 2.9” × 1.9” × 1.5”

Main crystal size: 3.9 × 3.5 cm = 1.5” × 1.4”

With handwritten note from the Folch Collection


Order
Ferberite with Pyrite and Quartz

RM46Q5: Group of crystals of Ferberite, some of them doubly terminated, with very well defined forms and with pyramidal faces, rare on the samples from Panasqueira. With Quartz and small coatings of Pyrite.
Minas da Panasqueira, Level 2, Beira Baixa  Portugal (±1965)

Specimen size: 7.5 × 6.5 × 4.4 cm = 3.0” × 2.6” × 1.7”

Main crystal size: 5.2 × 2.8 cm = 2.0” × 1.1”

With handwritten note from the Folch Collection


Ferberite with Pyrite and Quartz. Front
Front
Ferberite with Pyrite and Quartz. Rear
Rear
Sold
Ferberite with Siderite
Ferberite with Siderite. Front
Front
Ferberite with Siderite. Top
Top

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

Order
Ferberite with Muscovite and Siderite

RE77K8: Tabular crystals, very deep and brilliant black in color with a string of Muscovite crystals in the upper third. Classic for the species, a contact twin on {100} is readily seen by the offset which forms the "ledge" upon which the Muscovite crystals are attached.
Minas da Panasqueira, Level 2, 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


Ferberite with Muscovite and Siderite. Front
Front
Ferberite with Muscovite and Siderite. Rear
Rear
Ferberite with Muscovite and Siderite. Top
Top
Sold
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
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Cassiterite
Cassiterite. Front
Front
Cassiterite. Side
Side

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

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

With handwritten note from the Folch Collection


Order

EUROPE (EXCL. SPAIN AND PORTUGAL)


Austria

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


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

France

Rhodochrosite
Rhodochrosite. Rhodochrosite.

RD10T8: Small rhombohedral crystals of Rhodochrosite on matrix. They have color zoning, intense pink in their centers and transparent near colorless transparent edges. They are from a French locality uncommon in mineral collections.
Aderville, Louron Valley, Hautes-Pyrιnιes  France

Specimen size: 9.6 × 6.2 × 6.5 cm = 3.8” × 2.4” × 2.6”

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

With handwritten note from the Folch Collection


Euro:50 / US$66 / Yen:5150
Reservado

Germany

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, Oberpfδlzer Wald, Bavaria  Germany (±1959)

Specimen size: 7.6 × 7.5 × 6.7 cm = 3.0” × 3.0” × 2.6”

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

With handwritten note & record from the Folch Collection

Type locality

Euro:190 / US$245 / Yen:18970
Phosphophyllite with Vivianite and Quartz. Phosphophyllite with Vivianite and Quartz.
Reservado
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, Erzgebirge, Bohemia  Germany

Specimen size: 4.7 × 2.9 × 2.4 cm = 1.9” × 1.1” × 0.9”

With handwritten note from the Folch Collection


Order
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, Erzgebirge, Bohemia  Germany

Specimen size: 5.4 × 3.9 × 2.4 cm = 2.1” × 1.5” × 0.9”

With handwritten note from the Folch Collection


Ferberite.
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


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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
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  Germany

Specimen size: 11.3 × 8.5 × 5 cm = 4.4” × 3.3” × 2.0”

Main crystal size: 0.5 × 0.3 cm = 0.2” × 0.1”

With handwritten note from the Folch Collection


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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
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Italy

Celestine with Sulfur
Celestine with Sulfur. 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, Sicilia  Italy

Specimen size: 12 × 10.8 × 6.5 cm = 4.7” × 4.3” × 2.6”

Main crystal size: 1.5 × 0.6 cm = 0.6” × 0.2”

With handwritten note from the Folch Collection

Fluorescent long & short UV

Euro:190 / US$242 / Yen:18630
Reservado
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

Anglesite on Galena.
Anglesite on Galena.
Order

Slovenia

Cinnabar
Cinnabar. Cinnabar.
Cinnabar

RR64V0: An excellent sample from one of the most classic localities for the species but rarely appeared there in significant sharp crystals. The small crystals of this piece are morphologically complex, with the dominant faces of the rhombohedron. A lot of them are individual and transparent, very bright and on matrix. An European classic.
Idria Mine, Idria  Slovenia

Specimen size: 8.4 × 6.8 × 4.4 cm = 3.3” × 2.7” × 1.7”

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

With handwritten note from the Folch Collection


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Sweden

Berzeliite with Calcite and Hausmannite
Berzeliite with Calcite and Hausmannite

RY13T5: Deep yellow crystalline aggregates of this very rare arsenate that contrasts with white Calcite on the matrix.
The sample comes from the type locality and it is with an old label of Dr. F. Krantz, from Bonn, that we'll send to the buyer.
Langban, Filipstad, Vδrmland  Sweden (±1962)

Specimen size: 8.2 × 5.2 × 3.7 cm = 3.2” × 2.0” × 1.5”

With handwritten note & record from the Folch Collection

Type locality

Calcite extremely fluorescent long & short UV

Berzeliite with Calcite and Hausmannite. Front
Front
Berzeliite with Calcite and Hausmannite. Top
Top
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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


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Switzerland

Epidote

RH86T8: Transparent crystals of Epidote on matrix, many of them doubly terminated, with an intense green color and very bright. An excellent Swiss classic.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (±1950)

Specimen size: 9.2 × 8.4 × 4.3 cm = 3.6” × 3.3” × 1.7”

Main crystal size: 1.4 × 0.6 cm = 0.6” × 0.2”

With handwritten note from the Folch Collection


Epidote. Epidote.
Order
Heulandite with Scolecite
Heulandite with Scolecite. Heulandite with Scolecite.

RP10T5: Small isolated crystals of Heulandite that are translucent and very bright, with acicular crystals of Scolecite. The sample is from a very well known classic Swiss locality where zeolites are rare.
Val Giuf, Tavetsch, Grisons  Switzerland

Specimen size: 7.9 × 4.7 × 2.2 cm = 3.1” × 1.9” × 0.9”

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

With handwritten note from the Folch Collection


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Quartz with Chlorite

RC6S7: Aggregate of very bright and transparent crystals with chloritized surfaces near the terminal areas.
Bristenstock Mountain, Bristen, Reuss Valley, Uri  Switzerland (±1948)

Specimen size: 6.9 × 4.6 × 5.9 cm = 2.7” × 1.8” × 2.3”

Main crystal size: 3.2 × 1.5 cm = 1.3” × 0.6”

With handwritten note from the Folch Collection


Quartz with Chlorite. Front
Front
Quartz with Chlorite. Top
Top
Order
Quartz with Chlorite and Albite
Quartz with Chlorite and Albite. Front
Front
Quartz with Chlorite and Albite. Top
Top

RT14T5: A single crystal of Quartz with very well defined faces and edges, with very small inclusions of Chlorite and a small matrix of Albite.
Grimsel, Hasli Valley, Bern  Switzerland (±1948)

Specimen size: 8.3 × 3.4 × 3 cm = 3.3” × 1.3” × 1.2”

Main crystal size: 8.3 × 2.8 cm = 3.3” × 1.1”

With handwritten note from the Folch Collection


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Doubly terminated Quartz with Chlorite

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


Doubly terminated Quartz with Chlorite. Front
Front
Doubly terminated Quartz with Chlorite. Side
Side
Doubly terminated Quartz with Chlorite. Side
Side
Order
Doubly terminated Quartz
Doubly terminated Quartz. Font
Font
Doubly terminated Quartz. Rear
Rear

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


Order
Quartz

RJ14M3: A complete floater Quartz crystal whose faces totally consist of curious dissolution structures. Totally transparent with an excellent brilliance.
The piece is accompanied by a handwritten label with notes from Mr. Folch.
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


Quartz. Front
Front
Quartz. Rear
Rear
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Doubly terminated Quartz "faden" with Albite
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 Mountain, Bristen, Reuss Valley, 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


Order
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


Smoky Quartz.
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Quartz with Titanite and Chlorite
Quartz with Titanite and Chlorite. Quartz with Titanite and Chlorite.

RM64R0: Very sharp thin laminar light cream-colored crystals of Titanite on a group of deeply chloritized Quartz crystals partially coated by small Orthoclase (Adularia) crystals. The locality is considered an European classic.
Bδchli glacier, Bδchli Valley, Grimsel, Bern  Switzerland (±1947)

Specimen size: 8.8 × 5 × 2.4 cm = 3.5” × 2.0” × 0.9”

Main crystal size: 1 × 0.5 cm = 0.4” × 0.2”

With handwritten note from the Folch Collection


Order
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


Titanite with Clinochlore.
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Epidote
Epidote. Front
Front
Epidote. Rear
Rear
Epidote

RR56Q5: Parallel growths with very well defined faces and edges. The piece is from an uncommon locality. On Folch’s autographed label it is mentioned that it was acquired in Switzerland in 1948.
Rotlaui, Guttannen, Hasli Valley, Bern  Switzerland (±1948)

Specimen size: 6.6 × 3.9 × 1.8 cm = 2.6” × 1.5” × 0.7”

Main crystal size: 4.2 × 2.2 cm = 1.7” × 0.9”

With handwritten note & record from the Folch Collection


Order
Epidote

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


Epidote. Front
Front
Epidote. Top
Top
Order
Epidote
Epidote. Front
Front
Epidote. Rear
Rear

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


Order
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


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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


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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.
Binntal, 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 and Hematite

RF16K4: Parallel growths of Adularia crystals of tabular appearance, very rich in Chlorite inclusions and also with very bright Hematite inclusions.
Maderanertal, Uri  Switzerland

Specimen size: 4.3 × 3.4 × 2.8 cm = 1.7” × 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

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

Sold
Orthoclase (Adular)

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

Orthoclase (Adular). Front
Front
Orthoclase (Adular). Rear
Rear
Orthoclase (Adular). Top
Top
Order

United Kingdom

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


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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

Cerussite (jackstraw).
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Rumania

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, Maramures  Rumania

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


Sold

FSU


Crocoite with Vauquelinite and Quartz
Crocoite with Vauquelinite and Quartz

RD7T8: Sharp prismatic crystals of Crocoite on matrix. They are bright and with an intense color, with small Quartz crystals and growths of yellow Vauquelinite. An excellent European classic from the type locality for the species.
Berezovsk Mines, Berezovskii, Ekaterinburg, Ekaterinburgskaya Oblast, Urals  Russia

Specimen size: 1.5 × 4.3 × 2.6 cm = 0.6” × 1.7” × 1.0”

Main crystal size: 1.1 × 0.2 cm = 0.4” × 0.1”

With handwritten note from the Folch Collection

Type locality

Crocoite with Vauquelinite and Quartz. Crocoite with Vauquelinite and Quartz.
Order

MOROCCO


Malachite with Quartz
Malachite with Quartz. Malachite with Quartz.

RG14V0: Groups of primary Malachite crystals. They have simple and very well defined forms and are very bright. The groups are in matrix with small crystals of Quartz. It is from an old find, never repeated later, in spite of the fact that the locality has been repeatedly revisited in recent years.
Irhoud Mine, Safi, Doukkala-Abda  Morocco (±1979)

Specimen size: 8.2 × 7.8 × 5.2 cm = 3.2” × 3.1” × 2.0”

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

With handwritten note from the Folch Collection


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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, Tazenakht, Ouarzazate  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


Erythrite with Quartz. Erythrite with Quartz.
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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


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AFRICA


Tsumeb

Smithsonite with Cuprite

RP96V0: Group of Smithsonite crystals formed by a dominant flattened rhombohedron and poorly developed prismatic faces. The crystals are bright, translucent to transparent, they have a very intense yellow color and they are on matrix with Calcite and small crystals of Cuprite variety Chalcotrichite.
Tsumeb Mine, Tsumeb  Namibia (±1973)

Specimen size: 5.2 × 4.7 × 3.6 cm = 2.0” × 1.9” × 1.4”

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

With handwritten note from the Folch Collection


Smithsonite with Cuprite. Smithsonite with Cuprite.
Order
Smithsonite with Galena
Smithsonite with Galena. Smithsonite with Galena.

RJ47T8: Druse of rhombohedral crystals of Smithsonite of pale pink color, more isolated and aerial than usual with Tsumeb samples. With the Smithsonite is a very well defined cuboctahedral crystal of Galena partially coated by Smithsonite.
Tsumeb Mine, Tsumeb  Namibia

Specimen size: 10.4 × 6.5 × 4.5 cm = 4.1” × 2.6” × 1.8”

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

With handwritten note from the Folch Collection


Order
Smithsonite with Cuprite

RP46Q5: A group of crystals with very well defined faces and edges and clear green color, some of them with red inclusions of Cuprite. They are bright and on matrix.
Tsumeb Mine, Tsumeb  Namibia (±1973)

Specimen size: 5.6 × 4.8 × 4.4 cm = 2.2” × 1.9” × 1.7”

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

With handwritten note from the Folch Collection


Smithsonite with Cuprite. Smithsonite with Cuprite.
Order
Smithsonite with Cuprite inclusions
Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.

RE66K9: Druse, on matrix, of Smithsonite crystals, that look rounded. They are complex but dominated by the rhombohedron. Very atractive green-yellowish color enhanced by red Cuprite inclusions.
Tsumeb Mine, Tsumeb  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


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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


Smithsonite with Cuprite inclusions. Smithsonite with Cuprite inclusions.
Order
Cuprian Smithsonite with Calcite
Cuprian Smithsonite with Calcite. 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


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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

Smithsonite. Front
Front
Smithsonite. Side
Side
Smithsonite.
Order
Calcite with Cuprite (Chalcotrichite)
Calcite with Cuprite (Chalcotrichite). Calcite with Cuprite (Chalcotrichite).

RP12T5: Feltered growths of Chalcotrichite, the fibrous variety of Cuprite, that partially coat a group of rhombohedral crystals of Calcite.
Tsumeb Mine, Tsumeb  Namibia (±1973)

Specimen size: 5.3 × 2.8 × 2.5 cm = 2.1” × 1.1” × 1.0”

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

With handwritten note from the Folch Collection

Minor fluorescence short UV

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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

Malachite. Malachite.
Order
Azurite
Azurite. Front
Front
Azurite. Rear
Rear

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


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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


Wulfenite with Dolomite.
Order

Rhodochrosite with Gypsum
Rhodochrosite with Gypsum. Rhodochrosite with Gypsum.

RG67K9: Rhombohedral Rhodochrosite crystals. This habit is very unusual in the N’Chwanning Mine, excellent colour and brilliance. On a rich laminar Gypsum matrix.
N'Chwaning I Mine, Kuruman, Kalahari  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


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BRAZIL


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
Elbaite (Indicolite)
Elbaite (Indicolite).

RR96R6: Estremely elongated crystal, with an excellent termination, with very well defined faces and edges. The crystal is very transparent and has an excellent blue color, very well defined all along the prism, with greenish tones in the terminal zone.
Golconda pegmatite, Governador Valadares, Vale do Rio Doce, Minas Gerais  Brazil (±1965)

Specimen size: 7.3 × 0.7 × 0.6 cm = 2.9” × 0.3” × 0.2”

With handwritten note from the Folch Collection


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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

SOUTH AMERICA (EXCL. BRAZIL)


Acanthite
Acanthite.

RY13H8: Good miniature with small crystals, which combine the cube and octahedron, and have well-defined faces and edges. Actually it is very difficult to obtain samples from this classic locality.
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


Order
Paravauxite
Paravauxite

RL86K0: Very sharp, well defined and bright prismatic crystals on matrix. Registered with the Folch collection number 3754, it was previously from the A. Santos collection (1952).
Mina Siglo XX, Llallagua, 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


Paravauxite. Font
Font
Paravauxite. Side
Side
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ASIA - AUSTRALIA


Diopside
Diopside. Front
Front
Diopside. Rear
Rear

RP59V0: Very sharp crystal with neat faces and edges, translucent, and with a very deep and uniform green color. Surely one of the first (near 1980) Afghan diopsides to arrive in Europe.
Nuristan  Afghanistan (±1980)

Specimen size: 2.4 × 1.5 × 0.9 cm = 0.9” × 0.6” × 0.4”

With handwritten note from the Folch Collection


Euro:45 / US$58 / Yen:4490
Reservado
Pyromorphite with Galena
Pyromorphite with Galena

RP77S7: Parallel growths of prismatic crystals, more defined than usual for Broken Hill pyromorphites, creamy yellow color and with minor Galena.
Broken Hill, Yancowinna County, New South Wales  Australia

Specimen size: 5.2 × 4.3 × 2.7 cm = 2.0” × 1.7” × 1.1”

Main crystal size: 1 × 0.8 cm = 0.4” × 0.3”

With handwritten note from the Folch Collection

Very fluorescent long & short UV

Pyromorphite with Galena. Front
Front
Pyromorphite with Galena. Rear
Rear
Pyromorphite with Galena.
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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


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