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

 


CENTRAL SPAIN


Cinnabar
Cinnabar. Front
Front
Cinnabar. Top
Top
 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)
Cinnabar
 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Fluorescent long & short UV
Pyromorphite
Pyromorphite  

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

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

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

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

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

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

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

Fluorescent long & short UV
Freibergite with Siderite and Quartz
 

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

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

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

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

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

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

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)
Pyrargyrite on Quartz.
Pyrargyrite
Pyrargyrite. Front
Front
Pyrargyrite. Top
Top
Pyrargyrite  

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)

SOUTHERN SPAIN


Fluorapatite
Fluorapatite  

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

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

Minor fluorescence short UV
Fluorapatite.
Almandine
Almandine. Front
Front
Almandine. Side
Side
Almandine  

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

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

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

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

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

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

With handwritten note & record from the Folch Collection (duplicates)
Beryl with Quartz and Muscovite.
Cassiterite with Scheelite
Cassiterite with Scheelite. Cassiterite with Scheelite.
 

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

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

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

With handwritten note from the Folch Collection (duplicates)

Scheelite extremely fluorescent long & short UV
Cassiterite
 

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)
Bismuth
 

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)
Bismuth
 

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

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

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

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)
Bismuth with Quartz. Bismuth with Quartz.
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.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia  Spain

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

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

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

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

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

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

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

With handwritten note from the Folch Collection (duplicates)
Bismuth
 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

PORTUGAL


Fluorapatite
Fluorapatite.
 

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

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

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Fluorapatite 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, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

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

With handwritten note from the Folch Collection (duplicates)

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

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

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

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

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

Extremely fluorescent long & short UV
Doubly terminated Fluorapatite
 

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

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

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

Intense Fluorescence long & short UV
Doubly terminated Fluorapatite.
Fluorapatite with Arsenopyrite and Muscovite
Fluorapatite with Arsenopyrite and Muscovite.
 

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

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

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

With handwritten note from the Folch Collection (duplicates)

Fluorescent long & short UV
Fluorapatite with Muscovite
 

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

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

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

With handwritten note from the Folch Collection (duplicates)

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

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

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

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

Zoned fluorescence long & short UV
Fluorapatite with Ferberite and Muscovite
 

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

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

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

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Fluorapatite with Ferberite and Muscovite. Front
Front
Fluorapatite with Ferberite and Muscovite. Side
Side
Fluorapatite with Calcite
Fluorapatite with Calcite. Front
Front
Fluorapatite with Calcite. Rear
Rear
Fluorapatite with Calcite. Top
Top
 

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

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

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

Fluorescent long & short UV
Fluorapatite with Calcite and Muscovite
 

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

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

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

With handwritten note from the Folch Collection (duplicates)

Fluorapatite fluorescent long & short UV
Fluorapatite with Calcite and Muscovite. Fluorapatite with Calcite and Muscovite.
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, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1972)

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

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

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

Fluorescent long UV & minor fluorescence short UV
Fluorapatite with Muscovite
 

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

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

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

With handwritten note from the Folch Collection (duplicates)

Intense zoned fluorescence long & short UV
Fluorapatite with Muscovite. Fluorapatite with Muscovite.
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, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

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

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

With handwritten note from the Folch Collection (duplicates)

Scheelite fluorescent long & short UV
Ferberite with Muscovite, Siderite and Quartz
 

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Specimen size: 7.3 × 5.6 × 2.5 cm = 2.87” × 2.20” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Ferberite with 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, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1965)

Specimen size: 7.5 × 6.5 × 4.4 cm = 2.95” × 2.56” × 1.73”

Main crystal size: 5.2 × 2.8 cm = 2.05” × 1.10”

With handwritten note from the Folch Collection (duplicates)
Ferberite with Pyrite and Quartz. Front
Front
Ferberite with Pyrite and Quartz. Rear
Rear
Ferberite with Muscovite, Calcite, Pyrite and Chalcopyrite
Ferberite with Muscovite, Calcite, Pyrite and Chalcopyrite. Front
Front
Ferberite with Muscovite, Calcite, Pyrite and Chalcopyrite. Top
Top
 

RC97X8: Floater parallel growth of two complete Ferberite crystals with quite well-defined acute terminations, not too common at Panasqueira, and with white Calcite crystals, small leafy Muscovite aggregates and isolated crystals of Pyrite and Chalcopyrite on the back side.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1968)

Specimen size: 9.4 × 7.3 × 2 cm = 3.70” × 2.87” × 0.79”

Main crystal size: 8 × 5.7 cm = 3.15” × 2.24”

With handwritten note from the Folch Collection (duplicates)
Arsenopyrite with Topaz and Siderite
 

RM46M9: Group of very well defined and bright crystals of Arsenopyrite with small crystals of Muscovite and white Siderite. On the bottom of the specimen there are a group of small crystals of Topaz. Although in the past some Topaz appeared in this mine, they are actually extremely rare.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1982)

Specimen size: 5.7 × 4.1 × 3.6 cm = 2.24” × 1.61” × 1.42”

Main crystal size: 2 × 1.5 cm = 0.79” × 0.59”

With handwritten note from the Folch Collection (duplicates)
Arsenopyrite with Topaz and Siderite. Arsenopyrite with Topaz and Siderite.
Arsenopyrite with Siderite and Chalcopyrite
Arsenopyrite with Siderite and Chalcopyrite.
 

RG76G6: A nice group of doubly-terminated crystals of Arsenopyrite, with typical saw tooth edges and very bright. They contrast with lenticular crystals of Siderite and a little covering of Chalcopyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 7.3 × 5.7 × 3.8 cm = 2.87” × 2.24” × 1.50”

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

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

RZ46V1: Parallel growths of short prismatic crystals of Arsenopyrite. They are very bright and are slightly coated by small crystals of Siderite and Muscovite.
The sample is with a card from the Folch collection (number 9698) that we'll send to the buyer.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1966)

Specimen size: 8.5 × 7 × 4.1 cm = 3.35” × 2.76” × 1.61”

Main crystal size: 3 × 2.3 cm = 1.18” × 0.91”

With handwritten note & record from the Folch Collection (duplicates)
Arsenopyrite. Arsenopyrite.
Marcasite-Arsenopyrite with Quartz and Siderite
Marcasite-Arsenopyrite with Quartz and Siderite. Front
Front
Marcasite-Arsenopyrite with Quartz and Siderite. Rear
Rear
 

RF16M9: Very well defined and bright "cockscomb" growths of Marcasite with Quartz crystals partially covered by small lenticular crystals of Siderite and with Pyrite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1982)

Specimen size: 6.6 × 5.7 × 5 cm = 2.60” × 2.24” × 1.97”

Main crystal size: 2.8 × 2.2 cm = 1.10” × 0.87”

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

RD60M0: Lenticular Siderite crystals with a marked color zoning darker in the center and light-colored towards the edges. On a Quartz matrix.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 4.9 × 4.2 × 2.4 cm = 1.93” × 1.65” × 0.94”

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

With handwritten note & record from the Folch Collection (duplicates)
Siderite with Quartz.
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, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1967)

Specimen size: 5.8 × 4.5 × 5.2 cm = 2.28” × 1.77” × 2.05”

With handwritten note from the Folch Collection (duplicates)
Sphalerite with Chalcopyrite, Siderite, Muscovite and Calcite
 

RP66P1: Bright Sphalerite crystal with deep striations and triangular echeloning on its faces. It is with massive Chalcopyrite, Siderite, Muscovite and Calcite.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1967)

Specimen size: 7.2 × 6.7 × 5.7 cm = 2.83” × 2.64” × 2.24”

Main crystal size: 4.7 × 3.4 cm = 1.85” × 1.34”

With handwritten note from the Folch Collection (duplicates)
Sphalerite with Chalcopyrite, Siderite, Muscovite and Calcite. Sphalerite with Chalcopyrite, Siderite, Muscovite and Calcite.
Twinned Cassiterite
Twinned Cassiterite.
 

RC59I8: Crystal forms a cyclic, dipyramidal twin, very well defined. It has brown color and it is translucent and very bright.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 2 × 1.8 × 1.3 cm = 0.79” × 0.71” × 0.51”

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

TC26J3: A very interesting miniature both for the size of the crystal, considerable for Panasqueira, and because it is nearly transparent and has a very evident twin.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1978)

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

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

RX14W6: Group of twinned dipyramidal crystals that are very bright with yellowish brown reflections and transparencies and show fine horizontal striations. We especially note the size of the main crystal which is very big compared with most of the samples from Panasqueira.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 3.5 × 2.6 × 2 cm = 1.38” × 1.02” × 0.79”

Main crystal size: 2.6 × 2.3 cm = 1.02” × 0.91”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Quartz, Dolomite and Tourmaline
 

RE60V1: Twinned crystals of Cassiterite. They are translucent and bright and are on matrix, with Quartz, Dolomite and small acicular crystals of tourmaline (Schorl-Dravite)
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1972)

Specimen size: 5.8 × 4.1 × 4.5 cm = 2.28” × 1.61” × 1.77”

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

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Quartz, Dolomite and Tourmaline. Cassiterite with Quartz, Dolomite and Tourmaline.
Cassiterite with Muscovite
Cassiterite with Muscovite. Cassiterite with Muscovite.
 

RK27T5: Cyclic twinned crystals with sharp and very well defined faces and edges. They are translucent and extraordinarily bright and are on a matrix partially coated by Muscovite. A fine sample of one of the glorious epochs in Panasqueira.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 5.8 × 5 × 4.3 cm = 2.28” × 1.97” × 1.69”

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

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

RK49K4: Great group of flat Cassiterite crystals. They are twinned, very bright and with small, very clear, crystals of Quartz on a matrix with lenticular crystals of Siderite. On the original label is written the year 1964.
Minas da Panasqueira, level 2, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro  Portugal (±1964)

Specimen size: 11.4 × 4.4 × 2.2 cm = 4.49” × 1.73” × 0.87”

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

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

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

Specimen size: 8 × 5 × 6.2 cm = 3.15” × 1.97” × 2.44”

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

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

RQ62H8: The locality is very little known for Cassiterite. The crystals, some of them doubly terminated, are prismatic, twinned and in matrix. Their color is unusually clear and they are well-defined.
Mirandela, Bragança, Alto Douro  Portugal (±1980)

Specimen size: 3.4 × 2.6 × 1.4 cm = 1.34” × 1.02” × 0.55”

Main crystal size: 1.2 × 0.9 cm = 0.47” × 0.35”

With handwritten note from the Folch Collection (duplicates)
Cassiterite with Quartz.
Cassiterite
Cassiterite. Front
Front
Cassiterite. Top
Top
 

RQ6K9: Cassiterite crystal with sharp faces and edges. The twin is very marked. This specimen comes from a little known Portuguese locality.
Boticas, Vila Real District, Alto Trás-os-Montes, Norte Region  Portugal

Specimen size: 3.4 × 3.2 × 2.5 cm = 1.34” × 1.26” × 0.98”

With handwritten note from the Folch Collection (duplicates)
Cassiterite
 

RH76K9: Cassiterite crystal with sharp faces and edges with a considerable size an twinned. This specimen comes from a little known Portuguese locality.
Boticas, Vila Real District, Alto Trás-os-Montes, Norte Region  Portugal

Specimen size: 4.2 × 2.8 × 2.5 cm = 1.65” × 1.10” × 0.98”

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

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