Arizona

Copper
	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, Pima County, Arizona  USA Specimen size: 3.4 × 2.3 × 1.7 cm = 1.3” × 0.9” × 0.7” Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2” With record from the Folch Collection Probably Opal intense fluorescence short UV

	Copper with Cuprite
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, Cochise County, Arizona  USA (±1961) Specimen size: 3.4 × 2.3 × 1.9 cm = 1.3” × 0.9” × 0.7” Main crystal size: 0.6 × 0.4 cm = 0.2” × 0.2” With handwritten note & record from the Folch Collection

Calcite with Brochantite
	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, Cochise County, Arizona  USA (±1959) Specimen size: 3.7 × 3.3 × 2.7 cm = 1.5” × 1.3” × 1.1” Main crystal size: 0.7 × 0.6 cm = 0.3” × 0.2” With handwritten note & record from the Folch Collection Minor fluorescence long & short UV

	Dioptase with Wulfenite
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 Mine, Tiger, Arizona  USA (±1959) Specimen size: 3.3 × 2.4 × 1.8 cm = 1.3” × 0.9” × 0.7” With handwritten note & record from the Folch Collection Calcite fluorescent long & short UV

Wulfenite
	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, Silver District, Trigo Mountains, La Paz County, Arizona  USA Specimen size: 2.5 × 2 × 1.5 cm = 1.0” × 0.8” × 0.6” With handwritten note & record from the Folch Collection

California

	Linarite
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 claims (Hard Luck claims), Baker, San Bernardino County, California  USA Specimen size: 5.8 × 4.4 × 2.5 cm = 2.3” × 1.7” × 1.0” Main crystal size: 0.5 × 0.1 cm = 0.2” × 0.0” With handwritten note from the Folch Collection

Caledonite with Linarite
	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, Monrovia, California in 1955. Baker, San Bernardino County, California  USA (±1955) Specimen size: 8 × 6.3 × 5.2 cm = 3.1” × 2.5” × 2.0” With handwritten note & record from the Folch Collection

	Spodumene (Kunzite)
RC13K9: Floater and doubly terminated Spodumene crystal with multiple terminations at both ends. Pink color, with a strong dichroism. Pala Chief Mine, Pala District, San Diego County, California  USA (±1962) Specimen size: 5.2 × 2.8 × 1.2 cm = 2.0” × 1.1” × 0.5” With handwritten note from the Folch Collection Minor fluorescence long & short UV	Front Rear

Spodumene (Kunzite)
Front Rear	FB36K0: Floater doubly terminated crystal with rounded terminations. The color is good and especially intense on the extremities of the crystal. Pala Chief Mine, Pala District, San Diego County, California  USA (±1962) Specimen size: 5.7 × 2.8 × 1.3 cm = 2.2” × 1.1” × 0.5” With handwritten note from the Folch Collection Minor fluorescence with long & short UV

	Spodumene (Kunzite)
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, Pala District, San Diego County, California  USA (±1962) Specimen size: 4.1 × 4 × 2.5 cm = 1.6” × 1.6” × 1.0” With record from the Folch Collection Minor fluorescence with long & short UV	Front Top

Rutile
	TX10I8: Prismatic crystal with very well-defined faces and edges. It has translucent reddish zones. The crystal is partially covered by matrix. Champion Mine, Laws, White Mountains, Mono County, California  USA (±1959) Specimen size: 1.7 × 1.3 × 1.4 cm = 0.7” × 0.5” × 0.6” With handwritten note from the Folch Collection

	Rutile
TY11I8: Prismatic crystal with very well defined faces and edges. It is sharp, bright and dark brown. Champion Mine, Laws, White Mountains, Mono County, California  USA (±1959) Specimen size: 1.5 × 1.5 × 1.3 cm = 0.6” × 0.6” × 0.5” With handwritten note from the Folch Collection

Inesite
	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, Trinity County, California  USA (±1973) Specimen size: 6.8 × 5.8 × 3.4 cm = 2.7” × 2.3” × 1.3” Main crystal size: 1.5 × 0.8 cm = 0.6” × 0.3” With handwritten note from the Folch Collection

	Andradite
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 = 1.9” × 1.5” × 1.1” Main crystal size: 3.4 × 2.7 cm = 1.3” × 1.1” With handwritten note & record from the Folch Collection

Lawsonite
	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 = 1.4” × 1.3” × 1.2” Main crystal size: 0.7 × 0.6 cm = 0.3” × 0.2” With handwritten note & record from the Folch Collection

Colorado

	Rhodochrosite with Quartz
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. American Tunnel, Howardsville, Silverton, Colorado  USA (±1966) Specimen size: 3.5 × 2 × 1.5 cm = 1.4” × 0.8” × 0.6” Main crystal size: 1.8 × 1.6 cm = 0.7” × 0.6” With handwritten note from the Folch Collection

Rhodochrosite on Quartz
	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. American Tunnel Mine, Howardsville, Silverton, Colorado  USA Specimen size: 5 × 3.3 × 2 cm = 2.0” × 1.3” × 0.8” Main crystal size: 1.2 × 1.1 cm = 0.5” × 0.4” With handwritten note & record from the Folch Collection

	Hübnerite with Quartz
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, San Juan County, Colorado  USA (±1955) Specimen size: 8.7 × 6.5 × 3.5 cm = 3.4” × 2.6” × 1.4” With handwritten note from the Folch Collection	Front Rear

Hübnerite
Front Rear	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, San Juan County, Colorado  USA Specimen size: 5.1 × 3.4 × 4.5 cm = 2.0” × 1.3” × 1.8” Main crystal size: 3 × 1.6 cm = 1.2” × 0.6” With handwritten note from the Folch Collection

	Microcline (Amazonite)
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 = 1.8” × 1.5” × 1.7” With handwritten note & record from the Folch Collection	Front Top

Copper
	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 = 1.0” × 0.7” × 0.6” With handwritten note from the Folch Collection

	Epidote with Quartz
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, Alaska  USA (±1954) Specimen size: 3.6 × 2.1 × 2 cm = 1.4” × 0.8” × 0.8” Main crystal size: 3.6 × 1.7 cm = 1.4” × 0.7” With handwritten note from the Folch Collection

Epidote with Quartz
	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, Alaska  USA (±1972) Specimen size: 6 × 5 × 3.3 cm = 2.4” × 2.0” × 1.3” Main crystal size: 3.8 × 1.6 cm = 1.5” × 0.6” With handwritten note & record from the Folch Collection

	Enargite with Pyrite
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, Silver Bow County, Montana  USA (±1955) Specimen size: 3.2 × 3.1 × 2 cm = 1.3” × 1.2” × 0.8” With handwritten note from the Folch Collection

Enargite with Pyrite
	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, Silver Bow County, Montana  USA (±1955) Specimen size: 3.5 × 3.3 × 2 cm = 1.4” × 1.3” × 0.8” With handwritten note & record from the Folch Collection

	Enargite with Pyrite
RR14K9: Group of prismatic crystals with well defined faces and edges and good luster. On matrix with small octahedral Pyrite crystals. Butte, Silver Bow County, Montana  USA Specimen size: 4.5 × 3.4 × 2.5 cm = 1.8” × 1.3” × 1.0” Main crystal size: 1.0 × 1.0 cm = 0.4” × 0.4” With handwritten note from the Folch Collection

Herderite
	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 = 1.2” × 0.8” × 0.6” With handwritten note & record from the Folch Collection

	Beryllonite
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 = 0.8” × 0.7” × 0.4” With handwritten note & record from the Folch Collection Type locality

Grossular with Calcite
	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 = 2.1” × 1.9” × 1.2” Main crystal size: 1.3 × 0.9 cm = 0.5” × 0.4” With handwritten note & record from the Folch Collection

	Datolite
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, Westfield, Hampden County, Massachusetts  USA (±1961) Specimen size: 4.4 × 3.8 × 3.6 cm = 1.7” × 1.5” × 1.4” Main crystal size: 3.7 × 2 cm = 1.5” × 0.8” With handwritten note from the Folch Collection

Datolite
	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. West Paterson, Passaic County, New Jersey  USA Specimen size: 5.4 × 3.7 × 2.1 cm = 2.1” × 1.5” × 0.8” Main crystal size: 2.9 × 1.7 cm = 1.1” × 0.7” With handwritten note from the Folch Collection

	Datolite with Chalcopyrite
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. New Street Quarry, W. Peterson, Passaic County, New Jersey  USA (±1965) Specimen size: 8.3 × 6.2 × 4.1 cm = 3.3” × 2.4” × 1.6” Main crystal size: 1.8 × 1 cm = 0.7” × 0.4” With handwritten note from the Folch Collection

Rhodonite
	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, Sussex County, New Jersey  USA (±1970) Specimen size: 9.3 × 5 × 5.5 cm = 3.7” × 2.0” × 2.2” Main crystal size: 2.9 × 0.8 cm = 1.1” × 0.3” With record from the Folch Collection

	Dravite
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 = 1.5” × 1.4” × 1.3” With handwritten note & record from the Folch Collection	Front Rear

Zircon
	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. North Caroline  USA Specimen size: 0.8 × 0.6 × 0.5 cm = 0.3” × 0.2” × 0.2” With handwritten note from the Folch Collection Intense fluorescence short UV & fluorescent long UV

	Hewettite on Gypsum
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, Grants District, New Mexico  USA (1959) Specimen size: 4.4 × 4.1 × 1.9 cm = 1.7” × 1.6” × 0.7” With handwritten note & record from the Folch Collection

Twinned Rutile
	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 label also has some handwritten notes made by Folch. Magnet Cove, Hot Springs County, Arkansas  USA (±1956) Specimen size: 2.6 × 2.4 × 2.9 cm = 1.0” × 0.9” × 1.1” With handwritten note & record from the Folch Collection

Mexico

	Vesuvianite with Grossular
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. Lago de Jaco, Sierra de la Cruz, Coahuila  Mexico (±1970) Specimen size: 4.8 × 3.5 × 2.8 cm = 1.9” × 1.4” × 1.1” Main crystal size: 2.8 × 1.6 cm = 1.1” × 0.6” With handwritten note from the Folch Collection	Front Top

Grossular
	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. Lago de Jaco, Sierra de la Cruz, Coahuila  Mexico Specimen size: 3.1 × 3 × 2.9 cm = 1.2” × 1.2” × 1.1” With handwritten note from the Folch Collection

	Pyrrhotite with Dolomite
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, Chihuahua  Mexico (1966) Specimen size: 12.6 × 7.4 × 4.4 cm = 5.0” × 2.9” × 1.7” Main crystal size: 1.5 × 1.4 cm = 0.6” × 0.6” With handwritten note & record from the Folch Collection

Polybasite with Chalcopyrite and Quartz
Front Top	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 = 1.1” × 1.1” × 0.9” With handwritten note from the Folch Collection

	Wulfenite with Calcite
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. Los Lamentos, Chihuahua  Mexico (1960) Specimen size: 4.5 × 4.3 × 4 cm = 1.8” × 1.7” × 1.6” Main crystal size: 1.1 × 0.8 cm = 0.4” × 0.3” With handwritten note from the Folch Collection	Front Rear Top

Wulfenite
	RX96F8: The crystals, with perfect color and brilliance, have a lengthened form that is not common among examples from Los Lamentos. Los Lamentos, Chihuahua  Mexico Specimen size: 6.3 × 4.7 × 4 cm = 2.5” × 1.9” × 1.6” Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1” With handwritten note from the Folch Collection

	Wulfenite with Calcite
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. Mina Ahumada, Los Lamentos, Chihuahua  Mexico (±1973) Specimen size: 11 × 7 × 4 cm = 4.3” × 2.8” × 1.6” Main crystal size: 1.3 × 1.3 cm = 0.5” × 0.5” With handwritten note from the Folch Collection Calcite fluorescent long & short UV

Wulfenite
	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. Los Lamentos, Chihuahua  Mexico Specimen size: 7.3 × 4.4 × 3.5 cm = 2.9” × 1.7” × 1.4” Main crystal size: 0.8 × 0.3 cm = 0.3” × 0.1” With handwritten note from the Folch Collection

	Wulfenite with Dolomite
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. Mina Ahumada, Los Lamentos, Chihuahua  Mexico Specimen size: 3.3 × 3.1 × 2.4 cm = 1.3” × 1.2” × 0.9” Main crystal size: 2.9 × 2.9 cm = 1.1” × 1.1” With handwritten note from the Folch Collection

Silver with Calcite
Front Rear	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, Chihuahua  Mexico (±1910) Specimen size: 5.9 × 3.5 × 3.3 cm = 2.3” × 1.4” × 1.3” Main crystal size: 1.7 × 0.2 cm = 0.7” × 0.1” With handwritten note & record from the Folch Collection Calcite fluorescent long & short UV

	Adamite
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 de Mapimí, Durango  Mexico Specimen size: 4.7 × 4.2 × 3.2 cm = 1.9” × 1.7” × 1.3” With record from the Folch Collection Extremely fluorescent long & short UV	Front Side

Adamite
	RT36H0: A pleasant group of crystals of excellent color and luster and completely undamaged, on the Limonite matrix typical of Mapimí specimens. Mapimí, Municipio de Mapimí, Durango  Mexico Specimen size: 5 × 3.5 × 3.7 cm = 2.0” × 1.4” × 1.5” With handwritten note from the Folch Collection Extremely fluorescent long & short UV

	Apatite-(CaF)
RD56F8: A classic crystal with excellent color and transparency, and on matrix. Folch bought it in Cerro del Mercado, Durango, in September 1956. Cerro del Mercado, Durango  Mexico (1956) Specimen size: 4.7 × 3.6 × 3.2 cm = 1.9” × 1.4” × 1.3” Main crystal size: 2.2 × 1.1 cm = 0.9” × 0.4” With handwritten note & record from the Folch Collection Fluorescent long & short UV

Calcite on Quartz
	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 = 2.2” × 2.1” × 1.4” Main crystal size: 3.3 × 3.1 cm = 1.3” × 1.2” With handwritten note & record from the Folch Collection Calcite very fluorescent long & short UV

	Tellurite with Quartz
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 = 1.1” × 1.2” × 0.9” Main crystal size: 0.2 × 0.2 cm = 0.1” × 0.1” With handwritten note from the Folch Collection

Fluorite
	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. Sant Marçal, Montseny, Barcelona  Spain Specimen size: 11.2 × 11 × 3.2 cm = 4.4” × 4.3” × 1.3” Main crystal size: 2.7 × 1.7 cm = 1.1” × 0.7” With handwritten note from the Folch Collection Minor fluorescence long & short UV

	Gahnite with Quartz
RE6K9: Well defined blue-grayish octahedral crystals on a Quartz matrix. Bossost, Val d'Aran, Lleida  Spain Specimen size: 5.0 × 4.0 × 3.4 cm = 2.0” × 1.6” × 1.3” Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2” With handwritten note & record from the Folch Collection

Wulfenite (Chillagite) with Fluorite and Galena
	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, Vallès oriental, Barcelona  Spain (01/1955) Specimen size: 7.8 × 5.9 × 4.3 cm = 3.1” × 2.3” × 1.7” Main crystal size: 1.1 × 0.7 cm = 0.4” × 0.3” With handwritten note from the Folch Collection

	Wulfenite (Chillagite)
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. Mina Teresita, Sant Fost de Campsentelles, Vallès Oriental, Barcelona  Spain Specimen size: 2.3 × 2.1 × 0.8 cm = 0.9” × 0.8” × 0.3” With handwritten note from the Folch Collection

Wulfenite (Chillagite) with Barite
	RB12M9: Thin laminar crystals of this rare variety of Wulfenite, rich in tungsten, that contrast with the white matrix of Barite. The locality is a classic of Spanish mineralogy and the samples are very scarce. Sant Fost de Campsentelles, Vallès oriental, Barcelona  Spain Specimen size: 2.7 × 2.1 × 1.7 cm = 1.1” × 0.8” × 0.7” With handwritten note from the Folch Collection

	Wulfenite (Chillagite)
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. Mina Teresita, Sant Fost de Campsentelles, Vallès Oriental, Barcelona  Spain Specimen size: 2.4 × 2.0 × 1.4 cm = 0.9” × 0.8” × 0.6” With handwritten note from the Folch Collection

Wulfenite (Chillagite)
	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. Mina Teresita, Sant Fost de Campsentelles, Vallès Oriental, Barcelona  Spain Specimen size: 3.4 × 2.3 × 1.2 cm = 1.3” × 0.9” × 0.5” With handwritten note from the Folch Collection

	Cerussite with Galena
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. Mina Raimunda, El Molar, Priorat, Tarragona  Spain (±1923) Specimen size: 7 × 3.6 × 5.1 cm = 2.8” × 1.4” × 2.0” Main crystal size: 0.7 × 0.2 cm = 0.3” × 0.1” With handwritten note from the Folch Collection Minor fluorescence long & short UV

Cerussite with Galena
	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. Mina Raimunda, El Molar, Priorat, Tarragona  Spain (±1923) Specimen size: 7.9 × 7.5 × 5.2 cm = 3.1” × 3.0” × 2.0” Main crystal size: 0.7 × 0.5 cm = 0.3” × 0.2” With handwritten note from the Folch Collection Minor fluorescence long & short UV

	Cerussite with Galena
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. Mina Raimunda, El Molar, Priorat, Tarragona  Spain (1959) Specimen size: 7.5 × 4.5 × 4.4 cm = 3.0” × 1.8” × 1.7” Main crystal size: 0.5 × 0.3 cm = 0.2” × 0.1” With handwritten note from the Folch Collection Fluorescent long UV & minor fluorescence short UV	Front Top

Dolomite
	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. Cantera Azkarate, Eugui, Navarra  Spain (1968) Specimen size: 7 × 5 × 3.7 cm = 2.8” × 2.0” × 1.5” With handwritten note from the Folch Collection

	Twinned Dolomite
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. Cantera Azkarate, Eugui, Navarra  Spain (±1967) Specimen size: 7.7 × 6.1 × 6 cm = 3.0” × 2.4” × 2.4” Main crystal size: 3.8 × 3.7 cm = 1.5” × 1.5” With handwritten note & record from the Folch Collection	Front Top

Doubly terminated Calcite
Front Side	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. Minas de La Florida, La Florida, Cantabria  Spain (06/1960) Specimen size: 5 × 3.7 × 2.8 cm = 2.0” × 1.5” × 1.1” With handwritten note from the Folch Collection Minor fluorescence short UV

	Sphalerite with Dolomite
RX14P1: Well defined crystals, bright and of good color and transparency, with small coatings of white Dolomite, on matrix. Mina Las Manforas, Áliva, Picos de Europa, Cantabria  Spain Specimen size: 4.2 × 3.6 × 2.8 cm = 1.7” × 1.4” × 1.1” Main crystal size: 1 × 0.8 cm = 0.4” × 0.3”

Sphalerite
	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. Mina Las Manforas, Áliva, Picos de Europa, Cantabria  Spain Specimen size: 7.3 × 6 × 3 cm = 2.9” × 2.4” × 1.2” With handwritten note from the Folch Collection

	Sphalerite with Dolomite
RH89K9: Complex Sphalerite crystal group, with multiple faces and curved edges. The color is excellent and contrasts with the snowy white Dolomite matrix. Mina Las Manforas, Áliva, Picos de Europa, Cantabria  Spain (±1968) Specimen size: 10.1 × 7.5 × 6.5 cm = 4.0” × 3.0” × 2.6” Main crystal size: 5.7 × 5.3 cm = 2.2” × 2.1” With handwritten note from the Folch Collection

Tyrolite
	RV8P1: Deep green aggregates of thin laminar crystals on dark brown matrix. Mina Delfina, Ortiguero, Cabrales, Asturias  Spain (04/1960) Specimen size: 5.4 × 4.3 × 2.9 cm = 2.1” × 1.7” × 1.1” With handwritten note from the Folch Collection

	Tyrolite with Chrysocolla and Azurite
FT6K0: Leafy groups of laminar crystals on matrix, with Chrysocolla and vugs of small crystals of Azurite. Mina Delfina, Ortiguero, Cabrales, Asturias  Spain (1981) Specimen size: 7.9 × 6.2 × 5 cm = 3.1” × 2.4” × 2.0” Main crystal size: 0.8 × 0.4 cm = 0.3” × 0.2” With handwritten note from the Folch Collection

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. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (±1964) Specimen size: 3.4 × 3.1 × 2.2 cm = 1.3” × 1.2” × 0.9” Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1” With handwritten note from the Folch Collection

	Cinnabar with Barite
RV6L9: Group of Cinnabar crystals with well defined faces and edges, with a honey-colored Barite 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. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (±1973) Specimen size: 5 × 3.8 × 3.3 cm = 2.0” × 1.5” × 1.3” Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1” With handwritten note from the Folch Collection

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. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (±1979) Specimen size: 4 × 3.8 × 2.5 cm = 1.6” × 1.5” × 1.0” Main crystal size: 0.3 × 0.2 cm = 0.1” × 0.1” With handwritten note from the Folch Collection

	Cinnabar with Quartz
RQ7K9: Lively red crystals, good brilliance, that contrast on a snowy Quartz matrix. Pozo de San Teodoro, Almadén, Ciudad Real  Spain Specimen size: 7.2 × 4.5 × 1.4 cm = 2.8” × 1.8” × 0.6” Main crystal size: 0.5 × 0.4 cm = 0.2” × 0.2” With handwritten note from the Folch Collection

Cinnabar with Calcite
	RM36I7: Groups of small crystals of excellent color and luster that contrast with a matrix rich in Quartz. Pozo de San Teodoro, Almadén, Ciudad Real  Spain Specimen size: 5.8 × 4 × 3.3 cm = 2.3” × 1.6” × 1.3” With handwritten note from the Folch Collection

	Cinnabar with Dolomite
RQ14H8: Crystals, being small, have good color, luster and transparency and they strongly contrast with the white Dolomite where they are placed. Pozo de San Teodoro, Almadén, Ciudad Real  Spain Specimen size: 4 × 3.4 × 2.9 cm = 1.6” × 1.3” × 1.1” Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1” With handwritten note from the Folch Collection	Front Top

Cinnabar
	RE76F8: The crystals are small but the color and brilliance are exceptional. Folch found it at the Almadén Mine in 1923. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (1923) Specimen size: 6.2 × 4.2 × 3 cm = 2.4” × 1.7” × 1.2” Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1” With handwritten note & record from the Folch Collection

	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. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (1923) Specimen size: 3.1 × 2 × 1.5 cm = 1.2” × 0.8” × 0.6” Main crystal size: 0.4 × 0.4 cm = 0.2” × 0.2” With handwritten note & record from the Folch Collection

Cinnabar
Front 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. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (±1979) Specimen size: 2 × 1.4 × 1.1 cm = 0.8” × 0.6” × 0.4” With handwritten note from the Folch Collection

	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. Pozo de San Teodoro, Almadén, Ciudad Real  Spain (±1978) Specimen size: 3.0 × 1.8 × 1.4 cm = 1.2” × 0.7” × 0.6” Main crystal size: 1.0 × 0.8 cm = 0.4” × 0.3” With handwritten note from the Folch Collection	Front Top

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, Ciudad Real  Spain (1923) Specimen size: 3 × 2.3 × 1.7 cm = 1.2” × 0.9” × 0.7” With handwritten note & record from the Folch Collection Fluorescent long & short UV

	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, Ciudad Real  Spain Specimen size: 5.7 × 2.8 × 2.3 cm = 2.2” × 1.1” × 0.9” With handwritten note from the Folch Collection	Front Rear

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, Ciudad Real  Spain Specimen size: 5.9 × 4.6 × 3.3 cm = 2.3” × 1.8” × 1.3” Main crystal size: 1 × 0.3 cm = 0.4” × 0.1” With handwritten note & record from the Folch Collection Fluorescent long & short UV

	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. Mina Dolores, Nivel 60, Galería Sur, Pozoblanco, Córdoba  Spain (1959) Specimen size: 4.7 × 3.4 × 3.7 cm = 1.9” × 1.3” × 1.5” With handwritten note from the Folch Collection

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. Mina La Espuela de San Miguel, Villanueva de Córdoba, Córdoba  Spain ((01/1963)) Specimen size: 5.4 × 3.4 × 2.8 cm = 2.1” × 1.3” × 1.1” With handwritten note from the Folch Collection

	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. Mina La Espuela de San Miguel, Villanueva de Córdoba, Córdoba  Spain Specimen size: 4.8 × 3 × 2.4 cm = 1.9” × 1.2” × 0.9” With handwritten note from the Folch Collection

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. Mina La Espuela de San Miguel, Villanueva de Córdoba, Córdoba  Spain Specimen size: 1.6 × 1.6 × 2.2 cm = 0.6” × 0.6” × 0.9” With handwritten note from the Folch Collection

	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. Montoro, Córdoba  Spain Specimen size: 4 × 2.8 × 2.3 cm = 1.6” × 1.1” × 0.9” Main crystal size: 0.8 × 0.6 cm = 0.3” × 0.2” With handwritten note from the Folch Collection 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. Cerro Cobatillas, Cardeña, Córdoba  Spain Specimen size: 1.5 × 1.4 × 1.1 cm = 0.6” × 0.6” × 0.4” With handwritten note from the Folch Collection

	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. Cerro Cobatillas, Cardeña, Córdoba  Spain Specimen size: 1.7 × 1.5 × 1.1 cm = 0.7” × 0.6” × 0.4” With handwritten note from the Folch Collection

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. Mina San Nicolás, Valle de la Serena, Badajoz  Spain (±1976) Specimen size: 2.5 × 2.3 × 1.5 cm = 1.0” × 0.9” × 0.6” With handwritten note from the Folch Collection

	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. Mina San Nicolás, Valle de la Serena, Badajoz  Spain (±1976) Specimen size: 1.7 × 1.5 × 1.7 cm = 0.7” × 0.6” × 0.7” With handwritten note from the Folch Collection

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. Mina San Nicolás, Valle de la Serena, Badajoz  Spain (±1976) Specimen size: 2.1 × 2 × 1.5 cm = 0.8” × 0.8” × 0.6” With handwritten note from the Folch Collection

	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. Mina San Nicolás, Valle de la Serena, Badajoz  Spain (±1976) Specimen size: 2.4 × 1.7 × 2.1 cm = 0.9” × 0.7” × 0.8” With handwritten note from the Folch Collection

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. Mina San Nicolás, Valle de la Serena, Badajoz  Spain (±1976) Specimen size: 2.5 × 2.4 × 2.5 cm = 1.0” × 0.9” × 1.0” With handwritten note from the Folch Collection

	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. Mina Santa Cecilia, Hiendelaencina, Guadalajara  Spain Specimen size: 7.3 × 3.8 × 5.5 cm = 2.9” × 1.5” × 2.2” Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0” With handwritten note from the Folch Collection

Pyrargyrite
Front Top	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. Mina Santa Cecilia, Hiendelaencina, Guadalajara  Spain Specimen size: 2.3 × 1.5 × 1.5 cm = 0.9” × 0.6” × 0.6” Main crystal size: 1.3 × 1.2 cm = 0.5” × 0.5” With handwritten note from the Folch Collection

	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. Mina Teresa, Hiendelaencina, Guadalajara  Spain (05/1950) Specimen size: 2.9 × 1.4 × 1.3 cm = 1.1” × 0.6” × 0.5” Main crystal size: 0.2 × 0.1 cm = 0.1” × 0.0” With handwritten note & record from the Folch Collection

Twinned Orthoclase
Front Rear	FC58K0: Floater crystal, complete and doubly terminated, that forms a very well defined Carlsbad twin. Zarzalejo, Madrid  Spain Specimen size: 3.5 × 3.1 × 1.5 cm = 1.4” × 1.2” × 0.6” With handwritten note from the Folch Collection

	Doubly terminated Apatite-(CaF)
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, Beira Baixa  Portugal (1969) Specimen size: 4.2 × 3.2 × 1.7 cm = 1.7” × 1.3” × 0.7” With handwritten note & record from the Folch Collection Intense Fluorescence long & short UV

Apatite-(CaF) 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, Beira Baixa  Portugal (±1979) Specimen size: 4.5 × 2.7 × 1.8 cm = 1.8” × 1.1” × 0.7” Main crystal size: 1.8 × 1.5 cm = 0.7” × 0.6” With handwritten note from the Folch Collection Intense zoned fluorescence long & short UV

	Apatite-(CaF) 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, Beira Baixa  Portugal Specimen size: 7.3 × 6.5 × 4.3 cm = 2.9” × 2.6” × 1.7” Main crystal size: 1.7 × 1.2 cm = 0.7” × 0.5” With handwritten note from the Folch Collection Apatite-(CaF) fluorescent long & short UV

Apatite-(CaF) with Ferberite and Muscovite
Front Side	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, Beira Baixa  Portugal (10/1965) Specimen size: 5.5 × 3.6 × 2.6 cm = 2.2” × 1.4” × 1.0” Main crystal size: 2.2 × 2.2 cm = 0.9” × 0.9” With handwritten note from the Folch Collection Intense zoned fluorescence long & short UV

	Apatite-(CaF) 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, Beira Baixa  Portugal (1965) Specimen size: 3.9 × 2.2 × 2 cm = 1.5” × 0.9” × 0.8” Main crystal size: 2.1 × 1.7 cm = 0.8” × 0.7” With handwritten note & record from the Folch Collection Extremely fluorescent long & short UV

Apatite-(CaF) with Calcite
Front Rear 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, Beira Baixa  Portugal (1967) Specimen size: 6.9 × 4.1 × 2.5 cm = 2.7” × 1.6” × 1.0” With handwritten note & record from the Folch Collection 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, Beira Baixa  Portugal Specimen size: 5.5 × 3.5 × 2 cm = 2.2” × 1.4” × 0.8” With handwritten note from the Folch Collection	Front Side

Ferberite with Muscovite and Siderite
Front 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, Beira Baixa  Portugal (±1980) Specimen size: 5.5 × 3.7 × 2.5 cm = 2.2” × 1.5” × 1.0” With handwritten note from the Folch Collection

	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, Beira Baixa  Portugal Specimen size: 7.3 × 5.7 × 3.8 cm = 2.9” × 2.2” × 1.5” Main crystal size: 1.5 × 1.4 cm = 0.6” × 0.6” With handwritten note from the Folch Collection

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, Beira Baixa  Portugal (±1967) Specimen size: 7.2 × 6.7 × 5.7 cm = 2.8” × 2.6” × 2.2” Main crystal size: 4.7 × 3.4 cm = 1.9” × 1.3” With handwritten note from the Folch Collection

	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, Beira Baixa  Portugal (±1978) Specimen size: 2.6 × 2.6 × 2.8 cm = 1.0” × 1.0” × 1.1” With handwritten note from the Folch Collection	Front Rear

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, Beira Baixa  Portugal Specimen size: 2 × 1.8 × 1.3 cm = 0.8” × 0.7” × 0.5” With handwritten note from the Folch Collection

	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, Beira Baixa  Portugal (±1964) Specimen size: 11.4 × 4.4 × 2.2 cm = 4.5” × 1.7” × 0.9” Main crystal size: 0.7 × 0.5 cm = 0.3” × 0.2” With handwritten note from the Folch Collection

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, Beira Baixa  Portugal (±1982) Specimen size: 5.7 × 4.1 × 3.6 cm = 2.2” × 1.6” × 1.4” Main crystal size: 2 × 1.5 cm = 0.8” × 0.6” With handwritten note from the Folch Collection

	Cassiterite
RQ6K9: Cassiterite crystal with sharp faces and edges. The twin is very marked. This specimen comes from a little known Portuguese locality. Boticas, Chaves  Portugal Specimen size: 3.4 × 3.2 × 2.5 cm = 1.3” × 1.3” × 1.0” With handwritten note from the Folch Collection	Front Top

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 = 1.3” × 1.0” × 0.6” Main crystal size: 1.2 × 0.9 cm = 0.5” × 0.4” With handwritten note from the Folch Collection

Austria

	Epidote
RQ56G2: The sample comes from probably the most classic locality for Epidote. Crystals, prismatic and very thin, are grouped in a very disordered way but very esthetically. The piece is a floater. Knappenwand, Untersulzbachtal, Salzburg  Austria Specimen size: 7.2 × 3 × 2.6 cm = 2.8” × 1.2” × 1.0” Main crystal size: 2.3 × 0.5 cm = 0.9” × 0.2” With handwritten note from the Folch Collection

Strontianite with Calcite
Front Top	RP67J1: Magnificent group of prismatic crystals of excellent size, definition of faces and edges, color and luster. They have marked inner phantom growths and they are on a base of small crystals of Calcite. The specimen is with a label from Filer’s, Redlands, California, that we will send to the buyer. Oberdorf an der Laming, Bruck an der Mur, Styria  Austria (±1964) Specimen size: 4.7 × 4 × 3.5 cm = 1.9” × 1.6” × 1.4” With handwritten note from the Folch Collection Calcite fluorescent long & short UV

Germany

	Huréaulite
RT62J1: Very well defined, with excellent color, crystals from this locality are classic for the species. The crystals contrast on a dark matrix, they are quite individualized and some of them are doubly terminated. We will send an old label of the sample, from Dr. H. Maucher, Munich, to the buyer. Hagendorf, Waidhaus, Oberpfälzer Wald, Bavaria  Germany Specimen size: 4.2 × 3.6 × 2.6 cm = 1.7” × 1.4” × 1.0” Main crystal size: 0.3 × 0.1 cm = 0.1” × 0.0” With handwritten note & record from the Folch Collection

Huréaulite
	RH6F9: Faces of crystals are specially well defined, much more than is common for this phosphate, and the size is also considerable. In the label it's shown as Wenzelite (the old name for this species) with the proper correction. Hagendorf, Waidhaus, Oberpfälzer Wald, Bavaria  Germany (±1953) Specimen size: 3.5 × 2 × 2 cm = 1.4” × 0.8” × 0.8” Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1” With handwritten note & record from the Folch Collection

	Laueite
RD6F8: A good miniature of this rare phosphate. The needlelike crystals fill a pocket and have associated Strunzite. It was bought from H. Maucher on 7 September 1959. Hagendorf, Waidhaus, Oberpfälzer Wald, Bavaria  Germany (±1959) Specimen size: 2.3 × 1.4 × 1.2 cm = 0.9” × 0.6” × 0.5” With handwritten note & record from the Folch Collection Type locality

Strengite on Quartz
	RF37F8: Good crystals and good color. The locality is also rare in European collections and only a few of them contain specimens from it. Folch bought it from Peter Indergand who was from Göschenen, Switzerland. Kreuzberg, Pleystein, Oberpfälzer Wald, Bavaria  Germany (±1956) Specimen size: 4.2 × 2.8 × 2.6 cm = 1.7” × 1.1” × 1.0” With handwritten note & record from the Folch Collection

	Chalcopyrite with Dolomite
RG76J1: Very isolated crystals of very well defined faces and edges and extraordinarily bright, on a matrix of Dolomite. We specially note the locality because, actually, it is very difficult to obtain specimens of such quality from there. Altenberg, Erzgebirge, Saxony  Germany Specimen size: 6.7 × 4.1 × 3.2 cm = 2.6” × 1.6” × 1.3” Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2” With handwritten note from the Folch Collection

Pyrargyrite
	RJ36H0: An excellent classic in “thumbnail” version. Crystals have very well developed and defined faces and edges. Freiberg District, Erzgebirge, Saxony  Germany Specimen size: 1.2 × 1.1 × 0.8 cm = 0.5” × 0.4” × 0.3” Main crystal size: 0.5 × 0.2 cm = 0.2” × 0.1” With handwritten note from the Folch Collection

	Pyrargyrite with Siderite
RQ99F9: The crystals are excellent, with prism faces less long than is usual for the species. It has a perfect hexagonal profile, with top faces totally flat and very esthetically positioned on its Siderite matrix. The specimen is with a very old label written with an old pen which is the base for autographed notes from Sr. Folch. Annaberg, Erzgebirge, Saxony  Germany Specimen size: 4.3 × 3.9 × 2.5 cm = 1.7” × 1.5” × 1.0” Main crystal size: 1.4 × 1.1 cm = 0.6” × 0.4” With handwritten note & record from the Folch Collection

Pyrargyrite with Calcite
Front Detail seen from above	RH99F9: A beautiful group of prismatic crystals on the typical Calcite matrix from St. Andreasberg. in spite of its antiquity (it was purchased by Folch in 1955 but surely is much older) it is perfectly preserved and the crystal surface has reddish reflections not always present in the species. St. Andreasberg, St. Andreasberg District, Harz Mountains, Niedersachsen  Germany Specimen size: 4.7 × 4.7 × 2.7 cm = 1.9” × 1.9” × 1.1” Main crystal size: 0.7 × 0.5 cm = 0.3” × 0.2” With handwritten note & record from the Folch Collection

Greece

	Rhodochrosite
RA76M0: Complex aggregate with an excellent color, very intense and bright. On matrix with Sphalerite. This specimen is accompanied by the Siber+Siber label, from Zurich (Switzerland). Madem Laccos Mine, Cassandra, Chalkidiki, Macedonia  Greece (±1973) Specimen size: 5.7 × 5.1 × 2.1 cm = 2.2” × 2.0” × 0.8” With handwritten note from the Folch Collection

Rhodochrosite
	RD87G2: An attractive group from a very uncommon locality. The Rhodochrosite forms columnar growths of a splendid pink color and silky luster. Cassandra Mines, Chalkidiki  Greece Specimen size: 7 × 6 × 1.8 cm = 2.8” × 2.4” × 0.7” With handwritten note from the Folch Collection Minor fluorescence long & short UV

	Rhodochrosite
RC46G2: An attractive group from a very uncommon locality. The Rhodochrosite form columnar growths of a splendid pink color and silky luster. Cassandra Mines, Chalkidiki  Greece Specimen size: 9.2 × 6.5 × 4 cm = 3.6” × 2.6” × 1.6” With handwritten note from the Folch Collection Minor fluorescence long & short UV

Italy

Andradite (Demantoid)
	RJ16K4: On the sample coexist rounded crystals and very well defined ones on matrix. The color is good, classic for the locality. In some areas of the specimen there is fibrous Actinolite. Franscia Cave, Lanzada, Val Malenco  Italy (±1926) Specimen size: 11.7 × 6.2 × 3 cm = 4.6” × 2.4” × 1.2” Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1” With handwritten note from the Folch Collection

	Hematite with Quartz
RF46M5: Aggregate of lenticular, very bright crystals, partially covered by small white crystals of Quartz. A classic. Rio Marina, Isola d'Elba  Italy Specimen size: 12.3 × 9.8 × 9.5 cm = 4.8” × 3.9” × 3.7” Main crystal size: 2.4 × 1.8 cm = 0.9” × 0.7” With handwritten note from the Folch Collection

Atacamite
	RA17K8: Not well defined crystal group of Atacamite, but with impressive color and brilliance. Also impressive is the origin of this specimen: Elba Island. From this locality Atacamite has been described as a very uncommon mineral. Isola d'Elba  Italy Specimen size: 7 × 5.2 × 4.5 cm = 2.8” × 2.0” × 1.8” With handwritten note from the Folch Collection

	Covellite with Pyrite
RL78F8: A very attractive specimen, for both its perfect size, definition, and intense, metallic blue of the laminar crystals of Covellite, which contrast well with the small groups of Pyrite crystals. The locality is its second strong point: the classic mine of Calabona, Sardinia. It was bought in 1922. Miniera di Calabona, Alghero, Sassari, Sardegna  Italy (±1920) Specimen size: 5 × 4.3 × 4.2 cm = 2.0” × 1.7” × 1.7” With handwritten note & record from the Folch Collection

Anglesite with Galena
Front Side	RE86J5: Typical crystal from Monteponi. Prismatic, clear, transparent, bright and on Galena matrix. Monteponi is one of the classic localities for Anglesite and Phosgenite. Sr. Folch bought the specimen in 1914 to the Comptoir Minéralogique et Géologique Suisse of Geneva. Monteponi Mine, Iglesias, Iglesiente, Cagliari, Sardegna  Italy (±1914) Specimen size: 6.5 × 5.2 × 5.3 cm = 2.6” × 2.0” × 2.1” Main crystal size: 1.5 × 1 cm = 0.6” × 0.4” With handwritten note & record from the Folch Collection

	Phosgenite on Galena
RY71G0: A doubly-terminated crystal, nicely developed, clear and of an excellent color. Its esthetic position on the matrix enhances its observation and exposition. On the upper part there is a break but it is hardly visible because the same Phosgenite crystal hides it. Folch purchased the specimen in Milan, in 1965. Monteponi Mine, Iglesias, Iglesiente, Cagliari, Sardegna  Italy Specimen size: 5.3 × 3.8 × 4.5 cm = 2.1” × 1.5” × 1.8” Main crystal size: 2 × 2 cm = 0.8” × 0.8” With handwritten note from the Folch Collection Very fluorescent long & short UV	Front Side

Noruega

Corundum with Oligoclase and Biotite
	TH77J3: Tabular crystals with geometric striations of growth. Color is very intense, especially enhanced when the specimen is under a strong light. Crystals are in a Biotite matrix very rich of Oligoclase. We are very pleased because it has been possible for us to precisely certify the locality of origin, which is not always easy. This specimen is noted as acquired in 1957 and it is with a label from Burminco, Monrovia, California, that we’ll send to the buyer. Kleggassen, Froland, Arendal  Norway (±1957) Specimen size: 5.4 × 4.4 × 2.4 cm = 2.1” × 1.7” × 0.9” Main crystal size: 1 × 1 cm = 0.4” × 0.4” With handwritten note & record from the Folch Collection Corundum and Oligoclase fluorescent long & short UV

	Ferrohornblende
RJ13H8: The faces of the prism are very well defined and with fine vertical striations, while terminations are less clear because they coincide with contacts. We call attention to the locality, one of the most classic from Norway. Kragerö, Telemark  Norway Specimen size: 4.2 × 2 × 1.1 cm = 1.7” × 0.8” × 0.4” With handwritten note & record from the Folch Collection

Rumania

Pyrrhotite
	RM36F8: A curious growth form where the crystal’s lateral growth patterns have become so deep that they look like laminar crystals. For all the passage of time they still have excellent color and brilliance. It was bought in 1927 from W. Maucher of Munich. Herja Mine, Herja, Maramures  Rumania (±1927) Specimen size: 3.6 × 2.8 × 2.2 cm = 1.4” × 1.1” × 0.9” With handwritten note & record from the Folch Collection Herja -> former Kisbanya

	Sylvanite with Quartz
TG97J1: A specimen with pedigree, excellent and classic at the same time, with very well defined crystalline formations as usual for the species. The specimen is with an old label from the Sir Arthur Russell collection (num. 32) in which is stated, as the previous source, the collection of Colonel H.W. Lake. With the specimen, we will send the label to the buyer. Baia de Aries (Offenbanya), Apuseni mountains, Alba County, Transylvania  Rumania Specimen size: 5.9 × 4.4 × 2.8 cm = 2.3” × 1.7” × 1.1” With handwritten note from the Folch Collection

Slovak Republic

Devilline
	FQ76J7: Group of laminar crystals of extraordinarily deep bluish-green color, on matrix. The specimen, that was acquired in 1956 is with a label from Peter Indergant (numb. 1817) in which the species appears as Herrengrundite, a name actually now obsolete and that refers to its previous name, from Herregrund, its locality of origin. Spania Dolina (Herrengrund), Banská Bystrica  Slovak Republic (±1956) Specimen size: 4.1 × 3.4 × 2.7 cm = 1.6” × 1.3” × 1.1” Main crystal size: 0.3 × 0.2 cm = 0.1” × 0.1” With handwritten note from the Folch Collection

Sweden

	Berzeliite with Hausmannite
RT63F8: A very rare arsenate. It has surfaces with exfoliation that have an intense color. On the Quartz matrix there are also grains of Hausmanite. The printed label is from Dr. F. Krantz (Bonn) Langban, Filipstad, Värmland  Sweden (±1960) Specimen size: 5 × 2.8 × 1.9 cm = 2.0” × 1.1” × 0.7” With handwritten note & record from the Folch Collection Type Locality Calcite very fluorescent long & short UV

Gahnite
	RK27F8: Two black, octahedral crystals on matrix. It is not common that one finds examples of this species with good crystal form, especially with such sharp profiles. It comes with a label from Deyrolle (Paris), where he bought it in 1933, which has Sr. Folch’s handwritten notes on it. Fahlun, Kopparberg  Sweden (±1930) Specimen size: 5 × 2.5 × 1.8 cm = 2.0” × 1.0” × 0.7” Main crystal size: 1.3 × 1.5 cm = 0.5” × 0.6” With handwritten note & record from the Folch Collection Type locality

Switzerland

	Axinite-(Fe) with Albite and Chlorite
RC26K8: Group of crystals with very sharp faces and edges, very brilliant and transparent, partially covered by Chlorite on Albite matrix. This well-known locality is very poorly represented in mineral collections, including the very old ones. Piz Vallatscha, Lukmanier Pass, Grisons  Switzerland (±1922) Specimen size: 4.7 × 4.1 × 1.5 cm = 1.9” × 1.6” × 0.6” Main crystal size: 0.8 × 0.5 cm = 0.3” × 0.2” With record from the Folch Collection

Axinite-(Fe) with Albite
	RK66H7: We specially note the locality, very rarely represented in collections. It is a flat crystal of well defined faces and edges, on a matrix of Albite. The Folch collection label shows it was purchased in Geneva in 1922. Piz Vallatscha, Lukmanier Pass, Grisons  Switzerland (±1922) Specimen size: 2.6 × 2.6 × 1.6 cm = 1.0” × 1.0” × 0.6” Main crystal size: 2 × 1.2 cm = 0.8” × 0.5” With handwritten note & record from the Folch Collection

	Anatase and Quartz
TR64I8: Dipyramidal, very sharp and doubly terminated crystal with small crystals of Brookite and Quartz, on matrix. The sample is with a label from the Comptoir Minéralogique & Géologique Suisse, of Geneva. Piz Aul, Vals, Vals Valley, Grisons  Switzerland Specimen size: 5.3 × 3.9 × 3.7 cm = 2.1” × 1.5” × 1.5” Main crystal size: 0.6 × 0.3 cm = 0.2” × 0.1” With handwritten note & record from the Folch Collection

Anhydrite with Rutile on Dolomite
Front Rear	RB58F8: The color and transparency are both very good, as is the position of the doubly terminated crystals on the matrix. Nowadays it is extremely hard to get hold of this material as they came from the construction of the Simplon tunnel. This comes from an exchange with the Zurich museum and has a label from the collection of a technical college. Simplon Tunnel, Wallis  Switzerland (±1950) Specimen size: 3.2 × 2.8 × 2 cm = 1.3” × 1.1” × 0.8” Main crystal size: 2.1 × 0.8 cm = 0.8” × 0.3” With handwritten note & record from the Folch Collection

	Epidote
RE58M2: Parallel growth of well defined and bright Epidote crystals, some of them doubly terminated, with an intense green color. The specimen was purchased by Folch from Joseph Levy, in Disla (Disentis, Switzerland) in 1949, as is indicated in the Folch collection card Nr. 4.812 which we will send to the buyer. Gronda da Cavrein Valley, Vorderrhein Valley, Grisons  Switzerland (±1949) Specimen size: 3 × 2.2 × 1.8 cm = 1.2” × 0.9” × 0.7” Main crystal size: 2 × 0.9 cm = 0.8” × 0.4” With handwritten note & record from the Folch Collection

Epidote with Byssolite
	RH26G2: An esthetic specimen from a classic locality in which Epidote is uncommon. Crystals are prismatic, well terminated and some of them are transparent. They are in a matrix with a fibrous silicate, probably Actinolite, variety Byssolite. The specimen was purchased by Folch from Joseph Levy, in Disla (Disentis) in 1949. Val Cavrein  Switzerland (±1949) Specimen size: 4.7 × 3.6 × 3 cm = 1.9” × 1.4” × 1.2” Main crystal size: 4 × 1.6 cm = 1.6” × 0.6” With handwritten note & record from the Folch Collection

	Epidote with Diopside
RG58M2: Prismatic Epidote crystals with well defined faces and edges and perfect terminations with a deep color and good brilliance. On matrix. Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (08/1953) Specimen size: 4.8 × 2.9 × 2.4 cm = 1.9” × 1.1” × 0.9” Main crystal size: 0.8 × 0.6 cm = 0.3” × 0.2” With handwritten note from the Folch Collection

Vesuvianite
	RK10M2: One of the classic localities for the species. A group of deep brown flattened crystals, with short prism faces and pyramid faces which are intersected by the predominant pinacoidal faces. Rimpfischwange, Zermatt, Valais  Switzerland (09/1951) Specimen size: 3.5 × 2.8 × 1.1 cm = 1.4” × 1.1” × 0.4” Main crystal size: 0.6 × 0.5 cm = 0.2” × 0.2” With handwritten note from the Folch Collection

	Diopside
RZ6F9: It seems to emerge from an old book of mineralogy, this classic group of prismatic crystals, some of them doubly-terminated, has a rich green color. It is on a green schist matrix. Cherbadung, Binnthal  Switzerland Specimen size: 4.2 × 3.3 × 2.5 cm = 1.7” × 1.3” × 1.0” Main crystal size: 1.5 × 0.3 cm = 0.6” × 0.1” With handwritten note & record from the Folch Collection

Hematite with Rutile and Adular
	RJ11G8: Nice miniature. Tabular crystals of Hematite are very sharp and they have small red epitactic crystals of Rutile. Hematite contrasts strongly with Adularia matrix. On the record card there is a note as acquired by J. Hitz, in Rauris, in 1952. Cavradi, Curnera, Tavetsch, Grisons  Switzerland (±1952) Specimen size: 3.7 × 2 × 2.9 cm = 1.5” × 0.8” × 1.1” Main crystal size: 1.1 × 0.7 cm = 0.4” × 0.3” With handwritten note & record from the Folch Collection

	Hematite with epitaxial Rutile
RC16G6: Group of laminar crystals with very sharp edges and very visible triangular growth forms. On the faces of the Hematite there are epitaxial crystals of Rutile of intense red color. The label reveals that it was purchased in Switzerland, from Allois Curschelos of Surrein, in 1952. Cavradi, Curnera, Tavetsch, Grisons  Switzerland (±1952) Specimen size: 3.1 × 2.9 × 0.4 cm = 1.2” × 1.1” × 0.2” With handwritten note & record from the Folch Collection

Hematite with Rutile
Front Rear	RQ46G0: The specimen is a classic for Switzerland. It is floating and the most evident features are the brightness, the smoothness and sharpness of faces and edges, the presence of growth lines, and the epitaxial growth of red crystals of Rutile. The sample was acquired in a trade with the Geneva Museum in 1947. Cavradi, Curnera, Tavetsch, Grisons  Switzerland (±1947) Specimen size: 3.5 × 3 × 1.5 cm = 1.4” × 1.2” × 0.6” With handwritten note & record from the Folch Collection

	Quartz with Albite
RV62M2: Very curious Quartz specimen with a morphology more similar to Topaz than Quartz. Partially covered by Albite crystals, implanted on an Orthoclase (Adularia) matrix. Hospental, Urseren, Uri  Switzerland (±1952) Specimen size: 5.7 × 4 × 3.1 cm = 2.2” × 1.6” × 1.2” Main crystal size: 3.5 × 3.2 cm = 1.4” × 1.3” With handwritten note from the Folch Collection Fluorescence on the matrix (short and long UV)

Doubly terminated Quartz
	RL46L9: Group of doubly terminated Quartz crystals, one of them clearly dominant, with excellent transparency and good brilliance. The crystal that serves as a base seems broken but is undamaged, with curious face growths. The piece is accompanied by a handwritten label from the Folch collection. Voralp Valley, Uri  Switzerland Specimen size: 7.1 × 4 × 2 cm = 2.8” × 1.6” × 0.8” Main crystal size: 6.6 × 2.2 cm = 2.6” × 0.9” With handwritten note from the Folch Collection

	Doubly terminated and twinned Quartz
RJ63I7: Twinned, doubly terminated crystal. The twin is very visible, an unusual thing for Quartz, because the suture crosses the front face of the prism and the opposite position of the accessory rhombohedron faces. Wassen, Uri  Switzerland (±1980) Specimen size: 5 × 2.9 × 2.9 cm = 2.0” × 1.1” × 1.1” With handwritten note from the Folch Collection	Front Rear

Quartz
	RJ26G2: The crystal is perfectly transparent; its faces are sharply defined, with an "Alpine" quality, on a matrix with a fibrous silicate, probably Actinolite which penetrates into the Quartz as an inclusion. Val Cavrein, Grisons  Switzerland (±1949) Specimen size: 6.1 × 3 × 2.5 cm = 2.4” × 1.2” × 1.0” With handwritten note & record from the Folch Collection

	Doubly terminated Quartz with Hematite
RA17L3: Two crystals, one of them doubly terminated, totally clear, very bright, with Albite inclusions and Hematite and showing uncommon accessory rhombohedral oscillatory faces. From a classic Alpine area. Cavradi, Curnera, Tavetsch, Grisons  Switzerland (±1954) Specimen size: 5.6 × 3.9 × 3.7 cm = 2.2” × 1.5” × 1.5” Main crystal size: 4.8 × 2.5 cm = 1.9” × 1.0” With handwritten note from the Folch Collection	Front Side

Smoky Quartz with Chlorite
Front Side	RT86I2: Very well defined and superbly transparent prisms. Maderanertal, Amsteg, Uri  Switzerland (±1981) Specimen size: 7.8 × 4.3 × 2.5 cm = 3.1” × 1.7” × 1.0” Main crystal size: 7.8 × 2.7 cm = 3.1” × 1.1” With handwritten note from the Folch Collection

	Smoky Quartz with Actinolite
RF11M3: Group of smoky Quartz crystals with well defined edges and very transparent and brilliant faces. Smoky color is very uniform and deep. On a matrix with fibrous Actinolite. The piece is accompanied by a handwritten label with notes from Mr. Folch. Val Giuf, Tavetsch, Grisons  Switzerland Specimen size: 5.3 × 4 × 3.1 cm = 2.1” × 1.6” × 1.2” Main crystal size: 2.2 × 1.2 cm = 0.9” × 0.5” With handwritten note from the Folch Collection

Smoky Quartz
Front Rear	RC63M0: Parallel growth of right-handed and doubly terminated smoky Quartz crystals, one of them dominant, with an excellent transparency, luster and a deep color. With complex and multiple terminations. Oberalp Pass area, Tavetsch, Grisons  Switzerland Specimen size: 5 × 3.7 × 2.8 cm = 2.0” × 1.5” × 1.1” With handwritten note from the Folch Collection

	Smoky Quartz Gwindel
RL96H9: Some groups formed by subparallel growths of prismatic crystals are referred to as gwindels. In this one the smoky color is not deep but the crystals are clear and bright. The locality is a classic for an Alpine gwindel. Goscheneralp, Uri  Switzerland Specimen size: 6.5 × 4.5 × 6.8 cm = 2.6” × 1.8” × 2.7” With handwritten note from the Folch Collection	Front Top

Smoky Quartz Gwindel
Front Rear Top	RV46H8: A classic Alpine gwindel, Swiss in this case. The color is deep smoky and it is enhanced by the extreme transparency and luster of the sample. It is free of damage because the lower side is a neat contact. Val Giuf, Tavetsch, Grisons  Switzerland (±1980) Specimen size: 3.9 × 3.9 × 1.5 cm = 1.5” × 1.5” × 0.6” With handwritten note from the Folch Collection

	Smoky Quartz Gwindel with Chlorite
RC47H7: Parallel aggregate with a slightly twisting (gwindel) The faces of the prism are neat and bright; meanwhile the rhombohedron is rough and matte due to Chlorite inclusions. The specimen entered the Folch collection through an exchange in 1947. Drum Tobel, Sedrun, Tavetsch, Grisons  Switzerland (±1940) Specimen size: 5.3 × 5.2 × 2.7 cm = 2.1” × 2.0” × 1.1” With handwritten note & record from the Folch Collection	Front Top

Gwindel Smoky Quartz
Front Rear	RK37F8: A doubly terminated, slightly curved, smoky, very transparent gwindel. The special thing is that, apart from its perfection, it is on a matrix on doubly terminated, but not gwindel, Quartz. This floater was bought from Kaspar Nelly (Switzerland) in March 1948. Etzlithal, Uri  Switzerland (±1948) Specimen size: 4.8 × 4.4 × 3 cm = 1.9” × 1.7” × 1.2” Main crystal size: 3.8 × 2.9 cm = 1.5” × 1.1” With handwritten note & record from the Folch Collection

	Smoky Quartz "Tessiner habitus"
RM36H7: Quartz crystal with Tessiner habit, with the typical very acute form of the faces of an uncommon rhombohedron, greatly lengthened producing the piling up of the central zone of the prism which becomes progressively thicker toward the base. Val Maggia, Canton Tessin  Switzerland (±1980) Specimen size: 7.5 × 2.4 × 2.4 cm = 3.0” × 0.9” × 0.9” With handwritten note from the Folch Collection

Quartz "Tessiner habitus"
	RL26H7: Quartz crystal with Tessiner habit, with the typical very acute form of the faces of an uncommon rhombohedron, greatly lengthened producing the piling up on the central zone of the prism which becomes progressively thicker toward the base. Val Maggia, Canton Tessin  Switzerland (±1980) Specimen size: 5.3 × 2.8 × 2 cm = 2.1” × 1.1” × 0.8” With handwritten note from the Folch Collection

	Quartz
RK49H0: A curious formation, a parallel growth of numerous crystals giving as a result the appearance of a single crystal with dissolution forms on faces and edges while retaining the excellent luster and transparency. The specimen is a floater. Rhône Glacier, Furka, Furka Pass area, Valais  Switzerland (±1961) Specimen size: 11.2 × 4.2 × 4.2 cm = 4.4” × 1.7” × 1.7” With handwritten note from the Folch Collection	Front Rear

United Kingdom

Chalcocite with Bornite
	RC12K9: Skeletal growths of Chalcocite, acompanied by parallel aggregates of small Bornite cubic crystals. Carn Brea Mines, Pool, Illogan, Cornwall, England  United Kingdom Specimen size: 2.4 × 2.0 × 1.4 cm = 0.9” × 0.8” × 0.6” Main crystal size: 0.4 × 0.3 cm = 0.2” × 0.1” With handwritten note from the Folch Collection

	Chalcocite with Bornite
RA86J5: Excellent classic miniature. Group of tabular pseudohexagonal crystals of very well defined faces and edges. Carn Brea Mines, Pool, Illogan, Cornwall, England  United Kingdom Specimen size: 3 × 2.6 × 1.7 cm = 1.2” × 1.0” × 0.7” Main crystal size: 0.4 × 0.4 cm = 0.2” × 0.2” With handwritten note from the Folch Collection Minor fluorescence short UV

Cassiterite
Front Rear	RK36F9: The classic habit for crystals of Cassiterite from the Dolcoath mine. Very enlarged prisms with faces on the tips forming very acute pyramids. A specimen with pedigree because on its back side are both the numbers of the Folch and Sir Arthur Russell collections. The specimen is documented also with the labels from both collections. Dolcoath Mine, Tuckingmill, Camborne, Cornwall, England  United Kingdom Specimen size: 3.3 × 2.6 × 2.3 cm = 1.3” × 1.0” × 0.9” Main crystal size: 0.6 × 0.2 cm = 0.2” × 0.1” With handwritten note & record from the Folch Collection

	Cassiterite with Zinkenite
RJ47F8: A group of Cassiterite twins, very typical of Cornwall and on matrix. Needle crystals of Zinkenite accompany the Cassiterite. Although the mine that it is from is not given, it is the type of specimen that is hard to find. Cornwall, England  United Kingdom (±1926) Specimen size: 6 × 4.8 × 2.7 cm = 2.4” × 1.9” × 1.1” Main crystal size: 1.2 × 1.2 cm = 0.5” × 0.5” With handwritten note from the Folch Collection

Chalcopyrite with Quartz
	RM47F8: An excellent and classic example from the Tincroft Mine. A group of well defined crystals on a perfectly sized matrix. It was bought from Sir Arthur Russell in 1926. Tincroft Mine, Pool, Illogan, Redruth, Cornwall, England  United Kingdom (±1926) Specimen size: 3.7 × 3.4 × 3.1 cm = 1.5” × 1.3” × 1.2” Main crystal size: 0.9 × 0.8 cm = 0.4” × 0.3” With handwritten note & record from the Folch Collection

	Pyromorphite
RQ16K0: Prismatic crystals on matrix. The prisms are not well defined due to the fact that they are formed by aggregates of acicular crystals that give a satin luster to them. Color is good for the locality. Cornwall, England  United Kingdom Specimen size: 3.6 × 3.3 × 3.2 cm = 1.4” × 1.3” × 1.3” Main crystal size: 0.8 × 0.5 cm = 0.3” × 0.2” With handwritten note from the Folch Collection Minor fluorescence with long & short UV	Font Side

Cuprite
	RV36F8: A miniature classic from the Wheal Phoenix Mine. The crystals are brilliant, have good color, and have perfect growth of the octahedral form, and also the cubic form in some cases. The handwritten label has ‘Russell’ written on it, so it must have come from Sir Arthur Russell, who Folch knew. Wheal Phoenix, Linkinhorne, Liskeard, Cornwall, England  United Kingdom (±1948) Specimen size: 3.8 × 1.9 × 1.9 cm = 1.5” × 0.7” × 0.7” Main crystal size: 0.2 × 0.2 cm = 0.1” × 0.1” With handwritten note from the Folch Collection

	Cuprite with Copper
RC86H0: Another classic, with the typical appearance of the Cuprite samples from Liskeard. Crystals are octahedrons and they show two different forms, isolated on most of the piece’s surface and spherically grouped on the upper left zone. There is also native Copper on the back side of the piece. South Caradon, Liskeard, Cornwall, England  United Kingdom (±1926) Specimen size: 6.5 × 4.2 × 3 cm = 2.6” × 1.7” × 1.2” Main crystal size: 0.3 × 0.2 cm = 0.1” × 0.1” With handwritten note from the Folch Collection

Chalcosiderite
	RA87F8: A specimen that is especially rich in brilliant, well colored micro-crystals of this rare species. From the Parisian dealer Deyrolle. Cornwall, England  United Kingdom Specimen size: 6.7 × 3.5 × 4.5 cm = 2.6” × 1.4” × 1.8” With handwritten note from the Folch Collection

	Pyromorphite on Quartz
RK26F9: Collecting is also History and this specimen, with little prismatic crystals on Quartz, is History. Originally labeled as Campilite, it was purchased by Sr. Folch in 1940. Wheal Alfred, Phillack, Cornwall, England  United Kingdom Specimen size: 4.8 × 4 × 2 cm = 1.9” × 1.6” × 0.8” Main crystal size: 0.3 × 0.1 cm = 0.1” × 0.0” With handwritten note & record from the Folch Collection Fluorescent long & short UV

Pyromorphite
	RB96F9: A group of prismatic crystals of an excellent color and a very vivid brightness. The specimen is enriched by an old label from the Sir Arthur Russell collection (number 64) Wheal Alfred, Phillack, Cornwall, England  United Kingdom (±1824) Specimen size: 2.5 × 2 × 1.7 cm = 1.0” × 0.8” × 0.7” Main crystal size: 0.7 × 0.3 cm = 0.3” × 0.1” With handwritten note from the Folch Collection Fluorescent long & short UV

	Olivenite
RT17F9: Acicular crystals reach a considerable length and form attractive aggregates on matrix. An interesting note to add is that the species was first described on samples from Cornwall. Cornwall, England  United Kingdom Specimen size: 4.9 × 3 × 2 cm = 1.9” × 1.2” × 0.8” With handwritten note from the Folch Collection

Olivenite
	RQ80F9: Fine specimen of this rare arsenate. Acicular crystals are grouped in very definite aggregates, with the classic olive-green color for which the mineral is named, on a Quartz matrix. Cornwall is the type locality for the species. Cornwall, England  United Kingdom Specimen size: 6.2 × 4.5 × 3.3 cm = 2.4” × 1.8” × 1.3” With handwritten note from the Folch Collection

	Olivenite with Malachite
FY48J6: Radial groups of acicular crystals with the olive color characteristic of the species. The sample also has concretions of Malachite and it is on matrix. The sample has all the virtues we love on best Folch’s specimens. Presence, classic taste and pedigree, enhanced by the labels of Sir Arthur Russell collection and, originally, from Lady Elizabeth Anne Coxe Hippisley collection. Wheal Gorland Mine, Gwennap, Saint Day, Redruth, Cornwall, England  United Kingdom Specimen size: 8.2 × 4.5 × 4.6 cm = 3.2” × 1.8” × 1.8” Main crystal size: 0.4 × 0.1 cm = 0.2” × 0.0” With handwritten note & record from the Folch Collection

Liroconite
	RE92G2: Type locality. Crystals are very numerous, most of them well developed and some with deformations and contacts (but no damage). They have two very different colors, the typical blue and the greenish, much less common. Wheal Gorland Mine, Gwennap, Saint Day, Redruth, Cornwall, England  United Kingdom Specimen size: 8.5 × 7.8 × 6.8 cm = 3.3” × 3.1” × 2.7” Main crystal size: 0.5 × 0.2 cm = 0.2” × 0.1” With handwritten note from the Folch Collection

	Twinned Bournonite with Quartz
RY30F8: Extraordinary specimen. The cogwheel twin, along with some other smaller ones, is perfectly placed on the matrix and has maintained its brilliance over the years. The locality is also wonderful: Herodsfoot Mine. To add even more to its glory it was bought from Sir Arthur Russell in 1926. Herodsfoot Mine, Lanreath, Liskeard District, Cornwall, England  United Kingdom (±1926) Specimen size: 5.2 × 2.7 × 3.3 cm = 2.0” × 1.1” × 1.3” Main crystal size: 2.5 × 1.7 cm = 1.0” × 0.7” With handwritten note & record from the Folch Collection	Front Rear Top