RJ76M2: This esthetic sample shows three sharp and brilliant Cobaltite crystals, one of them with a good size, with dominant forms of the cube and pyritohedron. All are included in a massive Pyrrhotite matrix. We found that the crystals are not reattached to the matrix but are included in it in a natural way. With the specimen we will send the Folch collection card Nr. 11.165.
Hakansboda, Lindesberg, Västmanland  Sweden

Specimen size: 6 × 4.3 × 2.8 cm = 2.36” × 1.69” × 1.10”

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

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 = 1.97” × 0.98” × 0.71”

Main crystal size: 1.3 × 1.5 cm = 0.51” × 0.59”

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 = 1.97” × 1.10” × 0.75”

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

Specimen size: 8.2 × 5.2 × 3.7 cm = 3.23” × 2.05” × 1.46”

RY63M0: Very flattened and well defined Axinite-(Fe) crystals, with good color and brilliance. On matrix. In the handwritten Folch label one can read that it was a gift of A. Sulzbach, from Zurich (Switzerland) made in 1950. It is accompanied by the card of the Folch collection (Nr. 4704).

Scópi Mountain, Medel Valley, Grisons  Switzerland (±1950)

Specimen size: 4 × 2.9 × 2.4 cm = 1.57” × 1.14” × 0.94”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”

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 = 1.02” × 1.02” × 0.63”

Main crystal size: 2 × 1.2 cm = 0.79” × 0.47”

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 = 1.85” × 1.61” × 0.59”

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

RV12L9: Totally flattened Calcite crystal (“papierspat”) with pyramid shape and very marked striations. The specimen is from a classic locality for this kind of Calcite crystal.
The piece is accompanied by a handwritten label from the Folch collection.
Maderanertal, Silenen, Uri  Switzerland (±1947)

Specimen size: 5.2 × 4.5 × 0.8 cm = 2.05” × 1.77” × 0.31”

VF37AE7: Floater aggregate of Calcite crystals with oriented faces forming parallel growths of extraordinarily flattened crystals (a habit that is well known as “papierspat.” The aggregate is partially coated, mainly on the back, by Chlorite, very sharp Orthoclase (adularia variety) crystals and small Quartz crystals.
The sample is from the duplicates collection of Joaquín Folch, whose label we’ll send to the buyer.
Griesseren Valley, Maderanertal, Uri  Switzerland (±1952)

Specimen size: 9.7 × 6.2 × 5 cm = 3.82” × 2.44” × 1.97”

Main crystal size: 5.8 × 3.2 cm = 2.28” × 1.26”

RV60I8: Groups of very small dipyramidal, very sharp and doubly terminated crystals, extraordinarily bright. They are on a matrix of small doubly terminated crystals of Quartz.
Lungerntal, Maderanertal, Uri  Switzerland (±1954)

Specimen size: 3 × 2 × 1.8 cm = 1.18” × 0.79” × 0.71”

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

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 = 2.09” × 1.54” × 1.46”

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

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 = 1.26” × 1.10” × 0.79”

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

RV63M0: Excellent miniature. Twinned crystal with a good color and brilliance. On an Orthoclase (adularia) matrix partially covered by Clinochlore.
Druntobel, Sedrun, Tavetsch, Grisons  Switzerland

Specimen size: 2.5 × 1.9 × 2 cm = 0.98” × 0.75” × 0.79”

Main crystal size: 1.2 × 0.4 cm = 0.47” × 0.16”

RB60P8: A crystal of Titanite of good size, very well defined, with curved faces and edges and completely chloritized, probably by Clinochlore. A classic.
Griesseren Valley, Maderanertal, Uri  Switzerland

Specimen size: 3.4 × 2.8 × 2.2 cm = 1.34” × 1.10” × 0.87”

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

Specimen size: 8.8 × 5 × 2.4 cm = 3.46” × 1.97” × 0.94”

Main crystal size: 1 × 0.5 cm = 0.39” × 0.20”

RE67X8: Equant (pseudocubic) Perovskite crystal. Bright and with a dark brown color, it is on a chlorite matrix, with small black Magnetite crystals. The sample, not included in Calcite, has not been acid treated so it maintains a very good luster.
Rimpfischwange, Zermatt, Valais  Switzerland (1951)

Specimen size: 8.8 × 5.2 × 2.9 cm = 3.46” × 2.05” × 1.14”

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

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, Grischun (Grisons; Graubünden)  Switzerland (±1949)

Specimen size: 3 × 2.2 × 1.8 cm = 1.18” × 0.87” × 0.71”

Main crystal size: 2 × 0.9 cm = 0.79” × 0.35”

RJ12P8: A Swiss classic with two very well marked phases of crystallization, the first one as a basic single prism having very well defined faces and edges and the second as a polycrystalline termination with a parallel growth of transparent and bright crystals. The quality of the sample is good for the locality.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (1952)

Specimen size: 3.2 × 2.3 × 1.4 cm = 1.26” × 0.91” × 0.55”

RH63N4: From a very uncommon locality, an Alpine classic. The crystal, a floater, has a termination of partially chloritized faces and the other healed. Good color and luster.
Pollux Mountain, Zermatt, Matter Valley, Valais  Switzerland (1952)

Specimen size: 3.4 × 2.6 × 1.5 cm = 1.34” × 1.02” × 0.59”

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 = 1.89” × 1.14” × 0.94”

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

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

Specimen size: 9.2 × 8.4 × 4.3 cm = 3.62” × 3.31” × 1.69”

Main crystal size: 1.4 × 0.6 cm = 0.55” × 0.24”

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, Grisons  Switzerland (±1949)

Specimen size: 4.7 × 3.6 × 3 cm = 1.85” × 1.42” × 1.18”

Main crystal size: 4 × 1.6 cm = 1.57” × 0.63”

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

Specimen size: 6.6 × 3.9 × 1.8 cm = 2.60” × 1.54” × 0.71”

Main crystal size: 4.2 × 2.2 cm = 1.65” × 0.87”

RT6X8: This sample is really a rarity for Switzerland. The Beryl crystals, with a pale blue color, are quite well defined and on matrix, with Quartz, Orthoclase and leafy Muscovite.
Crestalunga, Bondasca Valley, Bergell Valley (Val Bregaglia; Val Bargaja), Grischun (Grisons; Graubünden)  Switzerland (1951)

Specimen size: 7.5 × 4.8 × 2.5 cm = 2.95” × 1.89” × 0.98”

Main crystal size: 3 × 1.2 cm = 1.18” × 0.47”

RP10T5: Small isolated crystals of Heulandite-Ca that are translucent and very bright, with acicular crystals of Scolecite. The sample is from a very well known classic Swiss locality where zeolites are rare.
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 7.9 × 4.7 × 2.2 cm = 3.11” × 1.85” × 0.87”

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

RA59AB7: Tinzenite aggregates whose crystalline forms are very well defined for this rare species. They have a color between cream and orange and are on a Quartz matrix with leafy Muscovite aggregates. The sample is from the type locality for the species.
Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 7.2 × 5.5 × 4.2 cm = 2.83” × 2.17” × 1.65”

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

RR9M3: Elongated rhombohedral Hessonite crystals on an uncolored Clinozoisite crystal matrix.
The piece is accompanied by a handwritten label with notes from Mr. Folch.
Breithorn Mountain, Zermatt, Matter Valley, Valais  Switzerland

Specimen size: 2.7 × 2.3 × 1.7 cm = 1.06” × 0.91” × 0.67”

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

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 = 1.38” × 1.10” × 0.43”

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

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 = 1.65” × 1.30” × 0.98”

Main crystal size: 1.5 × 0.3 cm = 0.59” × 0.12”

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 Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1952)

Specimen size: 3.1 × 2.9 × 0.4 cm = 1.22” × 1.14” × 0.16”

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 Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1947)

Specimen size: 3.5 × 3 × 1.5 cm = 1.38” × 1.18” × 0.59”

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 Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1952)

Specimen size: 3.7 × 2 × 2.9 cm = 1.46” × 0.79” × 1.14”

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

RQ13M2: This Quartz crystal stands out for the definition of its forms and its purity, transparency and incredible luster. A collector’s choice specimen.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1947)

Specimen size: 4.8 × 2.5 × 1.6 cm = 1.89” × 0.98” × 0.63”

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 = 1.97” × 1.14” × 1.14”

RA12S7: Group of very bright clear crystals. They are doubly terminated, with sharp polycrystalline growths and growth deformations at the base.
Oberalpstock Mountain, Strem Valley, Tavetsch, Vorderrhein Valley, Grisons  Switzerland (±1946)

Specimen size: 5.4 × 3.8 × 3 cm = 2.13” × 1.50” × 1.18”

Main crystal size: 4.2 × 2.4 cm = 1.65” × 0.94”

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 Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1954)

Specimen size: 5.6 × 3.9 × 3.7 cm = 2.20” × 1.54” × 1.46”

Main crystal size: 4.8 × 2.5 cm = 1.89” × 0.98”

RE14M5: Doubly terminated floater crystal with neat phantom growths underlined by Chlorite inclusions, especially on terminations.
Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 6 × 2.1 × 1.7 cm = 2.36” × 0.83” × 0.67”

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.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1949)

Specimen size: 6.1 × 3 × 2.5 cm = 2.40” × 1.18” × 0.98”

RV56K0: A floater group of doubly terminated crystals with parallel growths. From the original label we deduce it was mined, more or less, around 1980.
Etzlital, Maderanertal, Silenen, Uri  Switzerland (±1980)

Specimen size: 6.2 × 3.9 × 3.2 cm = 2.44” × 1.54” × 1.26”

Main crystal size: 5.8 × 2.1 cm = 2.28” × 0.83”

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 = 2.80” × 1.57” × 0.79”

Main crystal size: 6.6 × 2.2 cm = 2.60” × 0.87”

RB97H0: Parallel growth of doubly terminated crystals with a very evident “faden”. On the base of the piece there is a snowy white crystal of adularia, very bright. The label has the note: Com (comprado / acquired) Sulzbach. Zürich 1947.
Bristenstock Mountain, Bristen, Reuss Valley, Uri  Switzerland (±1947)

Specimen size: 11.8 × 6.7 × 5.4 cm = 4.65” × 2.64” × 2.13”

RG61M0: Group of right-handed smoky Quartz crystals, one of them clearly dominant, totally transparent, and with a deep color and excellent luster.
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5 × 2.9 × 3.2 cm = 1.97” × 1.14” × 1.26”

Main crystal size: 3.9 × 1.8 cm = 1.54” × 0.71”

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, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

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

RF8S7: Doubly terminated crystals with a scepter termination at one of its terminations, very well marked by an evident change of color, that changes to white.
Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5.2 × 2.3 × 2 cm = 2.05” × 0.91” × 0.79”

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 Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5.3 × 4 × 3.1 cm = 2.09” × 1.57” × 1.22”

Main crystal size: 2.2 × 1.2 cm = 0.87” × 0.47”

RD13M2: Group of Quartz crystals, one of them dominant, doubly terminated and with very sharp faces and edges. Although its uniform smoky tones are not very deep, the transparency is excellent. In the Folch collection card one can read that this sample, collection Nr. 4.147, was obtained by exchange in 1950 with Herr Sulzbach from Zurich (Switzerland).
Sidelangetscher, Furka Pass area, Urseren, Uri  Switzerland (±1950)

Specimen size: 5.6 × 5 × 3.7 cm = 2.20” × 1.97” × 1.46”

Main crystal size: 5.5 × 3.3 cm = 2.17” × 1.30”

RD14V5: Group of extraordinarily transparent and bright crystals of Quartz, slightly smoky and with a curious double termination that resembles a pyramidal dome.
The sample is with a label that we'll send to the buyer.
Oberalpstock Mountain, Strem Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 6.2 × 4.4 × 3.4 cm = 2.44” × 1.73” × 1.34”

Main crystal size: 5.5 × 2.4 cm = 2.17” × 0.94”

RQ27R6: Group of mostly doubly terminated crystals of Quartz. They are completely clear, very bright and are on matrix with small platy crystals of Hematite. An excellent Alpine classic.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1954)

Specimen size: 7.2 × 7 × 4.8 cm = 2.83” × 2.76” × 1.89”

Main crystal size: 4.9 × 1.8 cm = 1.93” × 0.71”

RT86I2: Very well defined and superbly transparent prisms.
The specimen has been published in the magazine ‘extraLAPIS’ on page 90, number 44, "Uri"
Maderanertal, Amsteg, Uri  Switzerland (±1981)

Specimen size: 7.8 × 4.3 × 2.5 cm = 3.07” × 1.69” × 0.98”

Main crystal size: 7.8 × 2.7 cm = 3.07” × 1.06”

RB97P1: Group of Quartz crystals with very well defined phantom growths, underlined by the inner coatings of Chlorite. Some of the crystals are partially coated by a second generation of Quartz crystals forming rosettes and very clear and bright small crystals.
Viaplana, Sils, Thusis, Domleschg, Hinterrhein Valley, Grisons  Switzerland

Specimen size: 6.8 × 4.3 × 5.4 cm = 2.68” × 1.69” × 2.13”

Main crystal size: 4.6 × 1.4 cm = 1.81” × 0.55”

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

Specimen size: 6.9 × 4.6 × 5.9 cm = 2.72” × 1.81” × 2.32”

Main crystal size: 3.2 × 1.5 cm = 1.26” × 0.59”

RLX47CDD: Folch's duplicate, elegant, and transparent, showcasing the growth phantoms of green Chlorite inclusions very well.
Viaplana, Sils, Thusis, Domleschg, Hinterrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1958)

Specimen size: 7.6 × 3.9 × 3.6 cm = 2.99” × 1.54” × 1.42”

RM12T5: Group of sharp, clear and colorless crystals that are very bright and have acicular inclusions of green Epidote at their base.
Göscheneralp, Göschenen Valley, Göschenen, Reuss Valley, Uri  Switzerland

Specimen size: 8 × 4.7 × 3.3 cm = 3.15” × 1.85” × 1.30”

Main crystal size: 5.3 × 2.6 cm = 2.09” × 1.02”

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

Specimen size: 8.3 × 3.4 × 3 cm = 3.27” × 1.34” × 1.18”

Main crystal size: 8.3 × 2.8 cm = 3.27” × 1.10”

RR66P1: Group of Quartz crystals of excellent brilliance, transparency and color, very deep. Some of the faces selectively have inclusions of Chlorite and, on the base, there also are fibrous aggregates of an indeterminate amphibole, probably Actinolite (Byssolite).
Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 9.8 × 5.3 × 3.3 cm = 3.86” × 2.09” × 1.30”

Main crystal size: 3.4 × 1.1 cm = 1.34” × 0.43”

RQ26X8: Floater and complete crystal with two very different terminations. One of them has simple forms and it is completely coated by chlorite, while the opposite is free of coatings and shows a parallel polycrystalline growth.
Sedrun, Tavetsch, Vorderrhein Valley, Grisons  Switzerland (±1980)

Specimen size: 11.2 × 5.5 × 4.5 cm = 4.41” × 2.17” × 1.77”

RG46X8: Floater and partially doubly terminated crystal. It is transparent, with inclusions and with both terminations are coated by Chlorite.
Sedrun, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1980)

Specimen size: 11.3 × 4.4 × 3 cm = 4.45” × 1.73” × 1.18”

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 = 2.24” × 1.57” × 1.22”

Main crystal size: 3.5 × 3.2 cm = 1.38” × 1.26”

RC63M5: Doubly terminated crystal of light smoky Quartz with one of its terminations simple and the opposite multiple. It is partially covered by Ankerite and small laminar crystals of Hematite.
Wassen, Uri  Switzerland

Specimen size: 6.2 × 4.1 × 2.3 cm = 2.44” × 1.61” × 0.91”

RQ14Q5: Very elongated crystal of Rutile, completely doubly terminated, with very well defined faces and edges and being almost completely included in a clear crystal of Quartz.
Oberalp Pass area, Tavetsch, Vorderrhein Valley, Grisons  Switzerland

Specimen size: 7.5 × 6 × 4.2 cm = 2.95” × 2.36” × 1.65”

Main crystal size: 5.2 × 1.7 cm = 2.05” × 0.67”

RE86R0: Doubly terminated crystal that has one of its terminations single and the opposite polycrystalline. The sample shows curious naturally corroded areas on most of its faces. In addition, a small ball of Actinolite, outside and inside the Quartz. The locality is an European classic.
Bristenstock Mountain, Bristen, Reuss Valley, Uri  Switzerland

Specimen size: 8 × 4.3 × 3.8 cm = 3.15” × 1.69” × 1.50”

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 Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1980)

Specimen size: 3.9 × 3.9 × 1.5 cm = 1.54” × 1.54” × 0.59”

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.
Etzlital, Maderanertal, Silenen, Uri  Switzerland (±1948)

Specimen size: 4.8 × 4.4 × 3 cm = 1.89” × 1.73” × 1.18”

Main crystal size: 3.8 × 2.9 cm = 1.50” × 1.14”

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, Tujetsch (Tavetsch), Grischun (Grisons; Graubünden)  Switzerland (±1940)

Specimen size: 5.3 × 5.2 × 2.7 cm = 2.09” × 2.05” × 1.06”

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.
Göscheneralp, Göschenen Valley, Göschenen, Reuss Valley, Uri  Switzerland

Specimen size: 6.5 × 4.5 × 6.8 cm = 2.56” × 1.77” × 2.68”

RB37Z4: Group of deep smoky transparent crystals with a small matrix and microcrystalline Chlorite inclusions. The aggregate shows parallel growths and a very well defined "gwindel" bend.
Ritzlihorn, Guttannen, Hasli Valley, Bern, Ritzlihorn, Guttannen, Hasli Valley, Bern  Switzerland (±1948)

Specimen size: 6.8 × 5 × 2.8 cm = 2.68” × 1.97” × 1.10”

RA50R0: Doubly terminated, partially chloritized, crystal with parallel polycrystalline terminations. The twisting (gwindel) of the crystal is especially evident on one of the main edges.
Binn Valley (Binntal), Wallis (Valais)  Switzerland (±1948)

Specimen size: 12.7 × 6.2 × 3.3 cm = 5.00” × 2.44” × 1.30”

RL26H7: Quartz crystal with Tessiner habit, with the typical very acute form of the faces of an uncommon rhombohedron, greatly elongated producing the piling up on the central zone of the prism which becomes progressively thicker toward the base.
Maggia Valley, Ticino (Tessin)  Switzerland (±1980)

Specimen size: 5.3 × 2.8 × 2 cm = 2.09” × 1.10” × 0.79”

RM36H7: Quartz crystal with Tessiner habit, with the typical very acute form of the faces of an uncommon rhombohedron, greatly elongated producing the piling up of the central zone of the prism which becomes progressively thicker toward the base.
Maggia Valley, Ticino (Tessin)  Switzerland (±1980)

Specimen size: 7.5 × 2.4 × 2.4 cm = 2.95” × 0.94” × 0.94”

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

Specimen size: 4 × 2.4 × 1.9 cm = 1.57” × 0.94” × 0.75”

RG46R6: Very transparent and bright crystal with very well defined faces and edges, with abundant cavities and curious dissolution forms. Folch acquired it from the "Mineralienkabinnet" of Schweitzer Heimatwek in Zürich.
Rhône Glacier, Furka, Furka Pass area, Valais  Switzerland (±1961)

Specimen size: 8.7 × 3.2 × 3.7 cm = 3.43” × 1.26” × 1.46”

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 = 4.41” × 1.65” × 1.65”

RE16K4: Manebach twin of two crystals with selective inclusions of Chlorite: some of the faces have the inclusions while others are completely free of them.
Binntal, Wallis  Switzerland (1949)

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

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

RD16K4: Manebach twin of two crystals with selective inclusions of Chlorite: some of the faces have the inclusions while others are completely free of them.
Binntal, Wallis  Switzerland (1949)

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

RG14K4: Parallel growth of sharp crystals of very well defined faces and edges, clean, translucent and bright on one of the sides of the sample and with Chlorite inclusions on the opposite.
Maderanertal, Uri  Switzerland

Specimen size: 3.2 × 3 × 2.4 cm = 1.26” × 1.18” × 0.94”

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

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

Specimen size: 4.3 × 3.4 × 2.8 cm = 1.69” × 1.34” × 1.10”

Main crystal size: 2.2 × 1.7 cm = 0.87” × 0.67”

RP96J3: The crystal is considerably transparent and has very well defined faces and edges. It is only partially covered by Chlorite.
The specimen is noted as purchased in 1949 and it is with a manuscript label of Folch we’ll send to the buyer.
Gerenthal, Oberwallis  Switzerland (±1949)

Specimen size: 5.7 × 5 × 2.8 cm = 2.24” × 1.97” × 1.10”

RM6G2: A classic alpine sample (is the variety adularia). A Floater, more clear than usual with a very intense vitreous luster.
Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 5.8 × 4 × 3.5 cm = 2.28” × 1.57” × 1.38”

RA27AE4: Floater aggregate of very sharp crystals that are translucent white with Chlorite inclusions in some areas and a small Quartz crystal. A Swiss classic of very good quality.
Tiefenbach, Urseren, Uri  Switzerland (±1949)

Specimen size: 9 × 8.7 × 5.2 cm = 3.54” × 3.43” × 2.05”

Main crystal size: 8.7 × 4 cm = 3.43” × 1.57”