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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

RT8N4: Small but very well defined and doubly terminated crystal, formed by the faces of the prism and of a dipyramid. We apologize for not offering more information about the locality. The original manuscript label simply indicates North Carolina.
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Specimen size: 0.8 × 0.6 × 0.5 cm = 0.31” × 0.24” × 0.20”

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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”

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”

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”

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”

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”

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”

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”

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”

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”

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”

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”