Mineral Specimens - page 1
USA

EC67AL5: Fan-like aggregates, one of them clearly dominant and very aerial, with very elongated Epidote crystals with very well defined faces and edges, bright, translucent, with a very deep pistachio-green color and on a group of Quartz crystals.
Green Monster Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska  USA (2003-2005)

Specimen size: 6.2 × 3.7 × 2 cm = 2.44” × 1.46” × 0.79”

Main crystal size: 3 × 1.8 cm = 1.18” × 0.71”

TBR27AO7: Parallel growths of elongated Epidote crystals, some of them doubly terminated, with sharp crystal forms and excellent terminations. Translucent, shiny, colored deep green, and with small Quartz crystals. An American classic.
Green Monster Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska  USA

Specimen size: 7.3 × 3.2 × 1.6 cm = 2.87” × 1.26” × 0.63”

XM160GF: Very sharp individual crystal of Ilvaite, with very well defined crystal forms and perfect terminations. The specimen is of great quality and size for this classic American locality. It comes from the Pedro Goy collection, whose label we will send to the buyer.
Bay State Group Mine, South Mountain Mining District, Owyhee County, Alabama  USA

Specimen size: 2.6 × 2.5 × 2.4 cm = 1.02” × 0.98” × 0.94”

XM80TQ: Radial aggregates of acicular Linarite crystals, translucent, with great luster and a very vivid color, on a Quartz-coated matrix. The specimen is from the Lee Hogg collection.
Grand Reef Mine, Laurel Canyon, Grand Reef Mountain, Klondyke, Aravaipa District, Graham County, Arizona  USA

Specimen size: 3.1 × 2.9 × 1.3 cm = 1.22” × 1.14” × 0.51”

TC66AN2: Parallel growth on a tiny bit of matrix of two Wulfenite crystals with pyramidal faces, well developed, with bright luster and a very vivid and uniform red color.
We will ship the specimen, from one of the great classic American localities, in its original Perky box from the Robert J. Noble collection, which also contains the label.
Red Cloud Mine, Trigo Mountains, Silver District, La Paz County, Arizona  USA

Specimen size: 1.7 × 1.4 × 0.2 cm = 0.67” × 0.55” × 0.08”

EM96AA5: Very aerial dendritic growth of elongated and flattened Copper crystals showing very well defined Spinel-law twins and partially coated by cubo-octahedral Cuprite crystals. An excellent American classic.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA

Specimen size: 3.8 × 3.1 × 0.8 cm = 1.50” × 1.22” × 0.31”

Main crystal size: 1.4 × 0.3 cm = 0.55” × 0.12”

TM67X2: Elongated spheroidal growths, on matrix, of small dipyramidal crystals. They are very bright and have a color between dark brown and reddish brown.
The sample, very significant and of excellent quality for the mine, is with a Schortmann’s Minerals label that we'll send to the buyer.
Mammoth-St. Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal County, Arizona  USA

Specimen size: 4.4 × 4.2 × 2.7 cm = 1.73” × 1.65” × 1.06”

EY48AK8: Malachite pseudomorphic after Azurite crystals, very sharp and aerial, with simple crystal forms with fibrous surfaces and satin sheen. Highlighted by small Copper crystals that accompany the Malachite - a rare association. An excellent American classic.
This specimen, from Doug Toland's collection, is accompanied by an old Roberts Minerals label that we will send to the buyer.


New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona  USA

Specimen size: 4.4 × 2.1 × 2.5 cm = 1.73” × 0.83” × 0.98”

Main crystal size: 2.5 × 1.8 cm = 0.98” × 0.71”

SV160EBR: Group of Cerussite crystals on a ferruginous rock matrix with marked complete multiple twins and with a morphology reminiscent of snowflakes, but with scattered crystals and some stacking, which makes this type of Cerussite popularly known as 'jackstraw'.
The specimen is a classic for this American Mine in Arizona, although in this case the crystals are more transparent than is usual in this locality.
Flux Mine, Flux Gulch, Alum Gulch, Patagonia Mountains, Harshaw District, Santa Cruz County, Arizona  USA

Specimen size: 4.4 × 4 × 1.3 cm = 1.73” × 1.57” × 0.51”

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

TH92AM5: Group of flattened Quartz crystals with a distinct Japan-law twin. The crystals are transparent and lustrous and of a size and transparency greater than usual in specimens from this mine.
Washington Camp-Duquesne Mines, Patagonia Mountains, Washington Camp-Duquesne District, Santa Cruz County, Arizona  USA

Specimen size: 6.6 × 5.3 × 4.8 cm = 2.60” × 2.09” × 1.89”

Main crystal size: 4.5 × 3.3 cm = 1.77” × 1.30”

TR89AM5: Group of translucent octahedral crystals with a pale green color with polycrystalline surfaces and partially covered by small groups of white Quartz crystals. Among the best possible quality for what is known from this mine.
Homestake-Jack Pot Mine, Black Mountains, Oatman District-San Francisco District, Mohave County, Arizona  USA

Specimen size: 7.3 × 5.7 × 4.9 cm = 2.87” × 2.24” × 1.93”

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

TQ69AM9: Druse of lenticular Azurite crystals, with bright luster and a vivid and uniform color, partially covered by acicular Malachite crystals. This very characteristic specimen comes from one of the great classic American localities for the species.
Morenci, Copper Mountain District, Shannon Mountains, Greenlee County, Arizona  USA

Specimen size: 5.2 × 4.3 × 2.8 cm = 2.05” × 1.69” × 1.10”

Main crystal size: 1.7 × 0.7 cm = 0.67” × 0.28”

MN91AL3: Group of slightly flattened Azurite crystals, with the dominant forms of the rhombohedron and polycrystalline growths on the faces, of a very vivid blue color, on matrix and partially covered with Malachite. From one of the great classic localities in Arizona, and with more color and better luster than usually found there.
Morenci Mine, Morenci, Copper Mountain District, Shannon Mountains, Greenlee County, Arizona  USA (±1995)

Specimen size: 5.5 × 4.4 × 2.9 cm = 2.17” × 1.73” × 1.14”

Main crystal size: 2 × 1.4 cm = 0.79” × 0.55”

MFB36AP5: Very elongated spheroidal and stalactitic microcrystalline growths of Azurite with deep, vivid and uniform color, in a limonite matrix with botryoidal coatings of Malachite. A U.S. classic, with rare unusual characteristics for specimens from this locality.
Morenci Mine, Morenci, Copper Mountain District, Shannon Mountains, Greenlee County, Arizona  USA

Specimen size: 6 × 4.4 × 3.2 cm = 2.36” × 1.73” × 1.26”

TP16AD3: Rosette aggregates of flattened lenticular crystals with very well defined crystalline forms and an intense color. They are on matrix, with limonite and with Malachite coatings. An American classic, with the added interest of the very specific locality details, noting the precise mine and the exact area where the sample was found.
Morenci Mine, Northwest Extension, Morenci, Copper Mountain District, Shannon Mountains, Greenlee County, Arizona  USA

Specimen size: 13.5 × 7.8 × 5.2 cm = 5.31” × 3.07” × 2.05”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”

TCB26AP7: Fine lamellar growths and rounded and poorly defined crystal forms of Antimony, very lustrous, on matrix.
From a well known Californian zone but one that is little represented in collections, this specimen comes from the old collection of Robert-Auguste Touchon.
Kern County, California  USA

Specimen size: 3.5 × 2.1 × 2.1 cm = 1.38” × 0.83” × 0.83”

TC85TV: Andradite crystals (variety topazolite) with the dominant crystal forms of the rhombohedron, with accessory cube and trapezohedron faces. Translucent, with a bright luster and very uniform honey-yellow color. On a rock matrix, with small spheroidal aggregates of Clinochlore of a very deep green color, almost black. An American classic.
Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito County, California  USA (11/1998)

Specimen size: 3.7 × 3.1 × 1.4 cm = 1.46” × 1.22” × 0.55”

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

TC85TE: Andradite crystals (variety topazolite) with the dominant crystal forms of the rhombohedron, with accessory cube and trapezohedron faces. Translucent, with a bright luster and very uniform honey-yellow color. On a rock matrix, with small spheroidal aggregates of Clinochlore of a very deep green color, almost black. An American classic.
Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito County, California  USA (11/1998)

Specimen size: 4.6 × 3.2 × 2.2 cm = 1.81” × 1.26” × 0.87”

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

TC80TL: Andradite crystals (variety topazolite) with the dominant crystal forms of the rhombohedron, with accessory cube and trapezohedron faces. Translucent, with a bright luster and very uniform honey-yellow color. On a rock matrix, with small spheroidal aggregates of Clinochlore of a very deep green color, almost black. An American classic.
Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito County, California  USA (11/1998)

Specimen size: 4.6 × 3.8 × 2.3 cm = 1.81” × 1.50” × 0.91”

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

T89GH5: This variety of Andradite is from the plentiful (and the only one known to date) find in the Yellow Cat Mine, November, 1998. It has a surface rich with dodecahedra with very well-defined faces and edges, bright and having an excellent color.
Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito County, California  USA (11/1998)

Specimen size: 6.5 × 4.2 × 3.2 cm = 2.56” × 1.65” × 1.26”

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

T29NAK3: Andradite crystals (topazolite variety) with the dominant crystal forms of the rhombohedron, combined with cube and trapezohedron faces, transparent, very bright and uniform honey-yellow. On a rock matrix, with abundant spheroidal aggregates of very deep green, almost black, Clinochlore. An American classic.
Yellow Cat Mine, New Idria, New Idria District, Diablo Range, San Benito County, California  USA (11/1998)

Specimen size: 9.2 × 7.2 × 2.9 cm = 3.62” × 2.83” × 1.14”

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

SV2460TBG: Triad of Elbaite crystals, doubly terminated, with a gradation of pink tones, turning into a greenish “green-cap” towards the end, covered and partially cemented by a feldspar and with leafy snow-white Albite crystals (variety cleavelandite) at one end. From a mining district renowned for its gems and lithium minerals.
The specimen comes from the Moutet collection, in Marseille, and is accompanied by an old Deyrolle label, which we will send to the buyer of the piece.
Pala, Pala District, San Diego County, California  USA

Specimen size: 6.4 × 5.5 × 4.4 cm = 2.52” × 2.17” × 1.73”

Main crystal size: 5 × 1.9 cm = 1.97” × 0.75”

TFX47AP9: Elbaite crystal, between transparent and translucent, with a clearly dominant pink-red color in the prism (rubellite variety) and smooth and shiny pinacoidal termination with a blue growth zone known as "blue cap".
Pala District, San Diego County, California  USA

Specimen size: 1.8 × 1.3 × 1 cm = 0.71” × 0.51” × 0.39”

MXF27AP6: Very aerial group of 'lepidolite' crystals (probably, due to the locality, the Polylithionite species), translucent, with a very intense lilac color. On a matrix of Quartz crystals (smoky variety), with white phantom growths on the terminations.
Very original and aesthetic.
Himalaya Mine, Gem Hill, Mesa Grande District, San Diego County, California  USA

Specimen size: 3.7 × 3.5 × 3.1 cm = 1.46” × 1.38” × 1.22”

TR46AH4: Irregular aggregates of fine acicular Stibnite crystals, a lot of them doubly terminated. They are very bright, on a rock matrix coated by Quartz microcrystals. The sample is from a very poorly known locality.
McLaughlin Mine, Knoxville, Knoxville District, Napa County, California  USA

Specimen size: 3 × 2.8 × 3.3 cm = 1.18” × 1.10” × 1.30”

Main crystal size: 1.1 × 0.1 cm = 0.43” × 0.04”

NFR86AO3: Very stylized parallel growth of hoppered octahedral Gold crystals, with a very deep spinel-law twin. On matrix, with small lustrous water-clear Quartz crystals.
As a curiosity, it is worth noting the great similarity of this classic specimen with the recent Moroccan golds of Aouint Ighoman.
This specimen comes from the collection of Ignacio Gaspar Sintes (number ORO-52), whose label we will send to the buyer.
Mariposa County, California  USA

Specimen size: 8.5 × 5.3 × 4.3 cm = 3.35” × 2.09” × 1.69”

Main crystal size: 1.5 × 0.4 cm = 0.59” × 0.16”

TX98AN2: Rosette growths of lamellar Rhodochrosite crystals, with good luster and an intense pink color, on matrix with Sphalerite crystals and small Pyrite crystals.
Eagle Mine, Gilman, Gilman District, Eagle County, Colorado  USA

Specimen size: 6.3 × 4.2 × 2.3 cm = 2.48” × 1.65” × 0.91”

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

EDX48AO0: Spheroidal nodules of Pyrite crystals with the dominant faces of the octahedron, very shiny, included in a carbonaceous matrix.
State Bridge area, Rocky Mountain, Eagle County, Colorado  USA

Specimen size: 7.6 × 6.3 × 4.4 cm = 2.99” × 2.48” × 1.73”

Main crystal size: 2.9 × 2.3 cm = 1.14” × 0.91”

MTL89AO0: Druse of twinned Sphalerite crystals with very well defined faces and edges, translucent, very bright and with dominant orange tones, with yellow reflections. On matrix, with small Galena crystals and twinned Chalcopyrite crystals. An American classic from a locality from which it is currently very difficult to obtain good specimens.
Commodore Mine, Creede District, Mineral County, Colorado  USA

Specimen size: 8.4 × 6.4 × 2.8 cm = 3.31” × 2.52” × 1.10”

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

TDD63AN3: Vug of Goethite crystals, many doubly terminated, with polycrystalline terminations with a fibrous appearance, lustrous, on matrix.
We will ship the piece in its original Perky box from the Robert J. Noble collection, which also contains the label.
Lake George, Park County, Colorado  USA

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

Main crystal size: 1.1 × 0.2 cm = 0.43” × 0.08”

ER97AK4: Arborescent aggregate of Gold crystals, some of them leafy, others hooked and some with defined crystalline forms. The specimen comes from a mine from which one rarely sees any specimens.
Dixie Mine, Idaho Springs, Ute Creek Mining District, Clear Creek County, Colorado  USA

Specimen size: 3.1 × 2.9 × 2 cm = 1.22” × 1.14” × 0.79”

TE13AN2: Pyromorphite crystals with a rounded habit due to the curved faces and edges, with bright luster and a yellowish green color.
We will ship the specimen, from one of the great classic American localities, in its original Perky box from the Robert J. Noble collection, which also contains the label.
Bunker Hill Mine, Bunker Hill properties, Kellogg, Coeur d'Alene District, Shoshone County, Idaho  USA

Specimen size: 2.6 × 2.2 × 2 cm = 1.02” × 0.87” × 0.79”

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

TB90AF2: Druse of elongated crystals with very well defined hoppered terminations. They are bright, have an olive-green color and are on matrix. They are from a mine near Bunker Hill, not so well known, that produced rare samples with such high quality.
The sample is with a label of The Crystal Mine, from Reno, Nevada, that we’ll send to the buyer.
Sherman Mine, Burke, Coeur d'Alene District, Shoshone County, Idaho  USA

Specimen size: 8.5 × 5.5 × 4.4 cm = 3.35” × 2.17” × 1.73”

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

JM69X0: Group of cubic crystals with polycrystalline growths on the cube faces. The crystals are translucent, with a clear violet color with a deeper color zoning on the edges. On the back there is a small matrix of Sphalerite.
Previously in the Tom Wiesner collection (num. 2343284), whose label we'll send to the buyer.
Denton Mine, Goose Creek Mine group, Harris Creek Sub-District, Hardin County, Illinois  USA (02/03/1984)

Specimen size: 12 × 10.2 × 5 cm = 4.72” × 4.02” × 1.97”

Main crystal size: 7.3 × 6.7 cm = 2.87” × 2.64”

JA28W3: Flattened drusy growth of very transparent cubic crystals with a very uniform violet color. An American classic of very good quality.
The sample was previously in the collection of Tom Wiesner (num. 73572074), whose label we’ll send with the Catmur label to the buyer.
Minerva I Mine, Spivey shaft, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois  USA (1974)

Specimen size: 13.7 × 10.3 × 1.7 cm = 5.39” × 4.06” × 0.67”

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

TC2240TFM: Group of complex Calcite crystals very rich in crystal forms, with a spheroidal shape, transparent, with good luster and an intense yellow orange color.
Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana  USA

Specimen size: 6 × 4.7 × 3.2 cm = 2.36” × 1.85” × 1.26”

Main crystal size: 2.2 × 2 cm = 0.87” × 0.79”

TB66AG3: Groups of octahedral Pyrite crystals with minor cube faces. They are very well defined and bright and are on a rocky matrix coated by small, very acute, scalenohedral Calcite crystals, transparent and bright. The sample is from a not well known Iowa mine.
Pint's Quarry, Raymond, Black Hawk County, Iowa  USA

Specimen size: 7.5 × 6.5 × 4.3 cm = 2.95” × 2.56” × 1.69”

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

SV2190TBR: Group of arborescent Copper crystals arranged aerially and with a very sharp crystal definition.
A very elegant miniature from a classic American deposit for Copper, and which comes to us via the old collection of Robert-Auguste Touchon.
Lake Superior copper district, Keweenaw County, Michigan  USA

Specimen size: 2.5 × 2.1 × 1.1 cm = 0.98” × 0.83” × 0.43”

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

MV66AM0: Floater group of very well defined dodecahedral crystals, bright and of good size, with fine alignments formed by the recrystallization of very shiny Copper microcrystals. With a little matrix and casts of vanished Quartz crystals. An American classic, a high quality miniature.
Keweenaw County, Michigan  USA

Specimen size: 2.7 × 2.2 × 2.2 cm = 1.06” × 0.87” × 0.87”

GA96AK5: Very aerial arborescent growth of native Copper crystals with defined faces and edges, some of them perfectly profiled, on matrix.
The sample is from the Casado Margolles collection (No. V 35), whose file we will send to the buyer.
Keweenaw County, Michigan  USA

Specimen size: 4.9 × 2.7 × 2.8 cm = 1.93” × 1.06” × 1.10”

TF86H5: Excellent crystallization clearly showing the faces of the dodecahedron, even considering the typical deformation and elongation of crystals.
The sample is from an old collection of Northwestern University and we’ll include the label.
Keweenaw County, Michigan  USA

Specimen size: 6 × 3.6 × 3.4 cm = 2.36” × 1.42” × 1.34”

Main crystal size: 1.7 × 0.7 cm = 0.67” × 0.28”

CFR69AO8: Silver crystals with polycrystalline growths and discernible crystal forms, interspersed with an arborescent growth of Copper. A classic and, at the same time, a rarity from the USA.
The specimen comes from the collection of duplicates of Carlos Curto (number 1989.29), whose label we will send to the buyer.
Lake Superior Mine, Phoenix, Keweenaw County, Michigan  USA

Specimen size: 2.7 × 2.6 × 1.8 cm = 1.06” × 1.02” × 0.71”

Main crystal size: 1.0 × 0.7 cm = 0.39” × 0.28”

TF66AH5: Dendritic growth with a clearly dominant crystal of a good size, with the well-developed faces of the dodecahedron and the octahedron.
We’ll send the sample in its original Perkin’s box from the R.J. Noble collection, also containing the collection label in which it appears that it had previously been in the Frank Melanson collection.
Franklin Mine, Franklin, Houghton County, Michigan  USA

Specimen size: 2.7 × 2.2 × 1.6 cm = 1.06” × 0.87” × 0.63”

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

TK69L5: A classic specimen from a classic locality. Dendritic growth of crystals of considerable size, elongated, with some well defined faces. Nice floater.
Houghton County, Michigan  USA

Specimen size: 10.6 × 8.2 × 2 cm = 4.17” × 3.23” × 0.79”

XM140TBA: Group of complex Calcite crystals that form well defined staggered growths. This specimen is from the Lee Hogg collection.
Brushy Creek Mine, Greeley, Viburnum Trend District, Reynolds County, Missouri  USA

Specimen size: 7.8 × 6.4 × 4 cm = 3.07” × 2.52” × 1.57”

LH76AE7: Very sharp and aerial Galena crystals, one of them clearly dominant. They are cubic with small octahedral faces, and are on matrix with small white Dolomite rhombohedra and twinned Chalcopyrite crystals.
The sample is from the Carles Millán collection whose catalog card we’ll send to the buyer.
Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri  USA

Specimen size: 7.6 × 4.3 × 4.9 cm = 2.99” × 1.69” × 1.93”

Main crystal size: 4.5 × 4.2 cm = 1.77” × 1.65”

TTB90AP9: Group of very sharp Galena crystals of good size, very lustrous, with deformed crystal coatings and spheroidal growths of Pyrite.
The specimen comes from the Michel Carré collection
Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri  USA

Specimen size: 8.2 × 8 × 5.7 cm = 3.23” × 3.15” × 2.24”

Main crystal size: 5 × 4.9 cm = 1.97” × 1.93”

TCC63AN3: Parallel polycrystalline growth of Microcline with very sharp Baveno-law and Manebach-law twins, lustrous and very white in color.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Granite Ridge, Lolo Pass, Missoula County, Montana  USA

Specimen size: 2.9 × 2 × 1.6 cm = 1.14” × 0.79” × 0.63”

TGB68AN4: Very aerial group of slightly tapered Mimetite crystals, many of them doubly terminated, with good luster and a uniform brown color, on matrix, with small Quartz crystals.
The specimen comes from a little-known locality for the species and is of excellent quality for what was found there.
Black Pine Mine, John Long Mountains, Philipsburg District (Flint Creek District), Granite County, Montana  USA

Specimen size: 5.8 × 5.2 × 2.8 cm = 2.28” × 2.05” × 1.10”

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

HM320TM: Dendritic growt very aerial and on a Quartz matrix, of leafy crystals with finely shaped edges of Gold (variety electrum), very rich in Silver (27% approx.)
We will send a copy of the analysis to the buyer of the specimen.
Weight: 0.8 grams
R.J. Roberts lode, Willow Creek District, Pershing County, Nevada  USA (2015)

Specimen size: 1.9 × 1.2 × 0.8 cm = 0.75” × 0.47” × 0.31”

TA30AC9: A novelty at Tucson 2016. Aggregate very rich in silver (27% aprox.) leafy Gold crystals (electrum variety), with flat octahedral crystals in groups that resemble leaves. Its color is the classic "old gold" of electrum due to its Silver-rich composition.
R.J. Roberts lode, Willow Creek District, Pershing County, Nevada  USA (2015)

Specimen size: 2.1 × 2 × 0.8 cm = 0.83” × 0.79” × 0.31”

TF90AK7: Very aerial aggregate of leafy gold crystals (electrum variety) very rich in silver (27% approx.) and with finely profiled edges. We will send a copy of the analysis to the buyer.
R.J. Roberts lode, Willow Creek District, Pershing County, Nevada  USA (2015)

Specimen size: 2.3 × 1.9 × 0.6 cm = 0.91” × 0.75” × 0.24”

TQ74AK4: Arborescent aggregate of Gold crystals (electrum variety) very rich in silver (27% approx.), leafy and with finely serrated edges. The specimen comes from a unique find made in a previously unknown mine. We will send a copy of the analysis to the buyer of the specimen.
R.J. Roberts lode, Willow Creek District, Pershing County, Nevada  USA (2015)

Specimen size: 2.8 × 2.4 × 0.8 cm = 1.10” × 0.94” × 0.31”

TR16AM3: Very aerial group of lamellar Gold crystals (variety electrum), some of them with very well marked skeletal growths and a little matrix at the back. The specimen comes from a relatively recent find in a known gold zone.
Specimens from this find were analyzed and we will send a copy of the analysis to the buyer.
R.J. Roberts lode, Willow Creek District, Pershing County, Nevada  USA (2015)

Specimen size: 2.9 × 2.5 × 1 cm = 1.14” × 0.98” × 0.39”

TD49AE9: Single crystal, on a rocky matrix, of this rare silver sulphosalt. It has very well defined faces and edges and an unusually intense luster.
Mina Rosebud, Rosebud District, Pershing County, Nevada  USA

Specimen size: 4 × 2.6 × 1.5 cm = 1.57” × 1.02” × 0.59”

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

EA90AI4: Very sharp rhombohedral Cinnabar crystals with very well defined faces and the interpenetration twin. They have a very vivid color and are on matrix with small Quartz crystals. This specimen has an extraordinary quality for the locality, well known for the species but where good Cinnabars are rare. With label from Scott J. Williams
Snowshoe Mine, Paradise Valley, Poverty Peak District, Humboldt County, Nevada  USA (±1954)

Specimen size: 5.5 × 3.6 × 4.1 cm = 2.17” × 1.42” × 1.61”

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

TT47AL3: Equidimensional Fluorapophyllite-(K) crystals, one of them clearly dominant, with an apparently cubic habit, with very well defined faces and edges, translucent white, on matrix, with Quartz and small white botryoidal aggregates of Prehnite. The specimen comes from a classic American locality for the species.
Paterson, Passaic County, New Jersey  USA (±1930)

Specimen size: 6.5 × 5 × 3.2 cm = 2.56” × 1.97” × 1.26”

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

MDE47AO3: Two groups of octahedral Franklinite crystals with sharp crystal forms, somewhat lustrous, on a Calcite matrix and with Willemite.
From one of the type localities for the species.
Sterling Mine, Sterling Hill, Ogdensburg, Franklin mining district, Sussex County, New Jersey  USA

Specimen size: 7.2 × 5.6 × 3.8 cm = 2.83” × 2.20” × 1.50”

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

MXT94AO3: Octahedral Franklinite crystals of considerable size for the species, with very sharp crystal forms, with better luster than usual and on a Calcite matrix with Willemite. A USA classic of very good quality.
From one of the type localities for the species.
Sterling Mine, Sterling Hill, Ogdensburg, Franklin mining district, Sussex County, New Jersey  USA

Specimen size: 10.1 × 6.4 × 5.4 cm = 3.98” × 2.52” × 2.13”

Main crystal size: 2.8 × 2 cm = 1.10” × 0.79”

MM37AG9: Botryoidal Smithsonite with a very aerial character, with a pale blue color and areas with intense blue shades. The sample is very typical for Kelly Mine samples, an American classic.
Kelly Mine, Magdalena, Magdalena District, Socorro County, New Mexico  USA

Specimen size: 5.1 × 4.8 × 3 cm = 2.01” × 1.89” × 1.18”

TFB87AO0: Spheroidal growths of Smithsonite, on matrix, translucent, with a satin luster and a uniform bluish green color. An American classic.
Kelly Mine, Magdalena, Magdalena District, Socorro County, New Mexico  USA

Specimen size: 8.2 × 5.4 × 4.2 cm = 3.23” × 2.13” × 1.65”

MML91AO1: Spheroidal growths of Smithsonite. On matrix, translucent, with an intense satiny luster for the species and an intense and uniform bluish green color. The mineral's banded growth is visible on the side. An excellent American classic.
Kelly Mine, Magdalena, Magdalena District, Socorro County, New Mexico  USA

Specimen size: 9.5 × 6 × 3.6 cm = 3.74” × 2.36” × 1.42”

BRR98AP3: Druse of Fluorite crystals between transparent and translucent, blue with lilac tones, on matrix and with small Quartz crystals. The specimen is an excellent American classic from a classic locality.
Blanchard Mine (Portales-Blanchard Mine), Bingham, Hansonburg District, Socorro County, New Mexico  USA

Specimen size: 14.4 × 12.5 × 6.6 cm = 5.67” × 4.92” × 2.60”

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

TV88AH1: Lenticular Linarite crystals, flattened and elongated with faces and edges more defined than usual, with a very intense and vivid blue color and on a Quartz matrix. The sample is from an American locality that is a classic for the species.
Bingham, Hansonburg District, Socorro County, New Mexico  USA (±1990)

Specimen size: 5.3 × 4.3 × 3.7 cm = 2.09” × 1.69” × 1.46”

Main crystal size: 0.5 × 0.2 cm = 0.20” × 0.08”

TX14AL2: A novelty at Tucson 2020. Group of three doubly terminated Tremolite crystals, with very well defined faces and edges. The crystals, with a little white Dolomite matrix, have an intense luster between vitreous and silky, are much more transparent than usual in specimens from this area and are green-gray with bluish tints. From a very recent find, the quality is superior to that generally known in the St. Lawrence County area.
Big Mole claim, West Pierrepont, St. Lawrence County, New York  USA (06/2019)

Specimen size: 1.6 × 1.4 × 0.8 cm = 0.63” × 0.55” × 0.31”

TC86AL6: A novelty at Tucson 2020. Elongated Tremolite crystals, one of them clearly dominant, on a Dolomite matrix, with marked scepter growth. They have very well defined faces and edges, good terminal faces and an intense luster between crystalline and silky. It exhibits greater transparency than usual in specimens from this area and a beautiful gray-green color with bluish tints. From a recent find, the quality is also far superior to what is generally known from the St. Lawrence County area.
The crystal was reinforced, already at origin, in two spots on the prism to avoid its possible separation.

Big Mole claim, West Pierrepont, St. Lawrence County, New York  USA (06/2019)

Specimen size: 15.7 × 6.5 × 4 cm = 6.18” × 2.56” × 1.57”

Main crystal size: 15.7 × 2.3 cm = 6.18” × 0.91”

TC2110TRF: Group of very sharp Gypsum crystals with good luster and a reddish color, totally filled with sand inclusions. A geological curiousity.
Great Salt Plains, Jet, Alfalfa County, Oklahoma  USA

Specimen size: 8.6 × 7.8 × 6.3 cm = 3.39” × 3.07” × 2.48”

Main crystal size: 5.3 × 4.6 cm = 2.09” × 1.81”

AF11AM3: Group of disphenoidal crystals (pseudotetrahedral) of Chalcopyrite, with sharp crystal forms. On a Magnetite matrix with octahedral crystals of Magnetite.
French Creek Mines, St. Peters, Warwick Township, Chester County, Pennsylvania  USA

Specimen size: 4.4 × 3.2 × 2.3 cm = 1.73” × 1.26” × 0.91”

Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”

TPM76AO0: Group of crystals, with one of them clearly dominant and all of them doubly terminated, totally occupied by inclusions of sand. They are formed by a prism with curved edges and a poorly defined terminal rhombohedron. An American classic which it is currently very difficult to obtain in good specimens as the area in which they were found has been declared a National Park.
Rattlesnake Butte, Jackson County, South Dakota  USA

Specimen size: 9.3 × 6.7 × 4.5 cm = 3.66” × 2.64” × 1.77”

Main crystal size: 7.6 × 3 cm = 2.99” × 1.18”

MT67X6: Cubic crystal of Fluorite with polycrystalline faces and small Galena crystals on their surfaces. The crystal is translucent and bright, has a clear lilac color and it is on a Galena matrix.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 7.5 × 7.3 × 7.5 cm = 2.95” × 2.87” × 2.95”

XM290TFG: Group of cubic Fluorite crystals, interpenetrating, with good luster and a deeper bluish color towards the edges of the crystals, on a limestone matrix covered by whitish and greyish rhombohedral Dolomite crystals.
The specimen comes from the collection of Miguel David Martínez Pérez (number 804) whose label we will send to the buyer.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 9.7 × 6.2 × 3.6 cm = 3.82” × 2.44” × 1.42”

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

AA66AG9: Druse of complex Sphalerite crystals, very rich with faces, clearly twinned and with very well defined forms. They are translucent, very bright, have a very deep color and are on a rocky matrix with small scalenohedral Calcite crystals. An American classic, typical of past samples from the Elmwood mine.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 7.9 × 7.4 × 4.4 cm = 3.11” × 2.91” × 1.73”

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

MP36T0: Well individualized crystals with very well defined faces and edges, very bright, and with intense deep red reflections. On matrix, with white rhombohedral crystals of Dolomite.
Gordonsville Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 5.4 × 5.4 × 2.4 cm = 2.13” × 2.13” × 0.94”

Main crystal size: 1.9 × 1.6 cm = 0.75” × 0.63”

BFG56AO6: Cuboctahedral crystal of Bixbyite of good size with very sharp crystal forms, with very bright luster, on a matrix of volcanic rock. With coatings of small light purple Fluorite crystals, transparent Topaz crystals and a very sharp Pseudobrookite crystal with excellent terminations.
The specimen comes from an important European collection and was sold by the well-known Dr. Wilke.
Thomas Range, Juab County, Utah  USA

Specimen size: 12.4 × 8.1 × 5.9 cm = 4.88” × 3.19” × 2.32”

Main crystal size: 1.1 × 0.9 cm = 0.43” × 0.35”

EE89AL3: Group of Quartz crystals (variety amethyst) transparent and bright. The color is selectively distributed, with the prism faces being practically colorless, slightly reddish colors on the pyramidal faces, and intense violet concentrated mainly around the terminal edges. The specimen comes from a classic American locality.
North Bend, King County, Washington  USA

Specimen size: 7.8 × 6.1 × 4.6 cm = 3.07” × 2.40” × 1.81”

Main crystal size: 4.7 × 2.4 cm = 1.85” × 0.94”