Mineral specimens search results

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Excellent sample whose penetrating angles had been molded by the faces of another preexisting mineral, probably Quartz. Those surfaces, then, aren’t real geometrical forms of Bismuth, but the small scales, echeloning and striations coating the surfaces correspond to crystalline growths of the mineral.
This specimen was photographed as a novelty at the 2009 Ste. Marie Show for the ‘Sainte-Marie Show 2009’ section of the magazine ‘Minéraux et Fossiles’ page 22, number 383 and also in the ‘Mineral Up’ magazine, on page 29, number 2009/2 and in the Russian magazine ‘Mineral Observer’ on page 60 in the volume 14, number 3.
Laikeng Mine, Gan, Ganzhou Prefecture, Jiangxi Province China (2009)
Specimen size: 4.6 × 3.5 × 3.4 cm = 1.81” × 1.38” × 1.34”

RA26G8: Bismuth

An historical sample, with a Folch’s autograph note, exactly detailing the point of the mine where it was mined, the gallery and the level and also the month and the year (1959). The sample is a close group of bright deformed and grained crystals, which are sharper in a zone rich on Quartz.
Dolores Mine, Sur Gallery, level 60, Dolores Mining Group, Las Lomas, Pozoblanco, Comarca Los Pedroches, Córdoba, Andalusia Spain (1959)
Specimen size: 4.7 × 3.4 × 3.7 cm = 1.85” × 1.34” × 1.46”

RX64H8: Bismuth

Excellent thumbnail, very representative for the locality. Free of alteration, it has no real crystals (as frequently happens on this species) but shows a parallel polysynthetic growth of the Bismuth that forms a kind of feather. The specimen has a small matrix of Quartz. It is from a mine that closed a long time ago.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain
Specimen size: 1.6 × 1.6 × 2.2 cm = 0.63” × 0.63” × 0.87”

RD36H8: Bismuth

Excellent sample, very representative for the locality. Free of alteration, it has no real crystals (as frequently happens on this species) but shows a parallel polysynthetic growth of the Bismuth. It is from a mine that closed a long time ago.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain
Specimen size: 4.8 × 3 × 2.4 cm = 1.89” × 1.18” × 0.94”

ET68K3: Bismuth

The vein surface is very densely covered with groups of small crystals that are very sharp. The specimen is a classic from one of the great localities of Germany.
Schlema-Hartenstein District, Erzgebirgskreis, Saxony/Sachsen Germany (±2004)
Specimen size: 8.5 × 7.7 × 6 cm = 3.35” × 3.03” × 2.36”

RA76H9: Bismuth

A good sample, very representative of the specimens from the locality. It is free of alteration and although not having visible crystals (which is common for the species) it shows the polysynthetic parallel growth typical for Bismuth, and it has the form of a “feather”. It is from an old mine closed for a long time ago.
Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain
Specimen size: 4.5 × 4.2 × 1.8 cm = 1.77” × 1.65” × 0.71”

TX63G1: Bismuth on Quartz

This parallel group of well-formed crystals stands out on a matrix of clear Quartz.
Cobalt area, Cobalt-Gowganda Region, Timiskaming District, Ontario Canada
Specimen size: 7 × 5.2 × 4 cm = 2.76” × 2.05” × 1.57”

RF97K9: Bismuth on Quartz

Polysynthetic and laminar growths, with a good luster, on a Quartz matrix with small grains of Bismuth disseminated throughout the matrix.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain ((01/1963))
Specimen size: 5.4 × 3.4 × 2.8 cm = 2.13” × 1.34” × 1.10”

MMB26AN9: Bismuth with Calcite

Very aerial aggregate of sharp Bismuth crystals with very well marked parallel and skeletal growths, some of them doubly terminated, on matrix with Calcite. A superb European classic, of great quality and with the added benefit of being in matrix.
Schlema-Hartenstein District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 5.2 × 4.4 × 3.4 cm = 2.05” × 1.73” × 1.34”

TP46AI8: Bismuth with Calcite

Very aerial growth of extraordinarily well developed Bismuth crystals that are very bright and on matrix with Calcite. A German classic and a miniature of great quality that is from the Frank Keutsch collection whose label we will send to the buyer.
Schlema-Hartenstein District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 3.6 × 3 × 1.5 cm = 1.42” × 1.18” × 0.59”

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

RB13R0: Bismuth with Calcite

Granular growths and small sharp crystals of Bismuth that are very bright and partially coated by rhombohedral Calcite crystals, uncommon for the locality, with very well defined faces and edges and, occasionally, skeletal growths.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain
Specimen size: 7.9 × 5 × 3.7 cm = 3.11” × 1.97” × 1.46”

TPA62AP3: Bismuth with Chalcopyrite

Enormous crystal of Bismuth with well defined faces and edges, a metallic grey color, on a crystalline Chalcopyrite matrix. On the back it exhibits polysynthetic twinning and dissolution forms. Among the largest crystals known for the species. From the Piaotang Mine in China where tungsten and tin are extracted from quartz veins.
Piaotang Mine, Dayu, Ganzhou Prefecture, Jiangxi Province China (2021)
Specimen size: 7.5 × 7.2 × 4.2 cm = 2.95” × 2.83” × 1.65”

Main crystal size: 7.5 × 4.5 cm = 2.95” × 1.77”

RX86R0: Bismuth with Quartz

Small sharp crystals of native Bismuth, very bright and partially coated by well defined crystals of Quartz. With the Bismuth there are elongated brassy, not well defined, Bismuthinite crystals.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain (09/1960)
Specimen size: 6.3 × 4.7 × 5.2 cm = 2.48” × 1.85” × 2.05”

RE17R6: Bismuth with Quartz

Growths of small crystals oriented in a socalled "feather" formation. The crystals are very bright and on a matrix with crystallized Quartz.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain
Specimen size: 12.3 × 6.9 × 3.1 cm = 4.84” × 2.72” × 1.22”

RB17S7: Bismuth with Quartz

A granular massive aggregate with very bright and very well marked skeletal and feathered growths, with Quartz.
La Espuela de San Miguel Mine, Villanueva de Córdoba, Comarca Los Pedroches, Córdoba, Andalusia Spain
Specimen size: 7.8 × 5.7 × 5.7 cm = 3.07” × 2.24” × 2.24”

TXY16AP7: Bismuthinite

Granular growths of Bismuthinite, shiny and metallic grey in color, with small yellow metallic inclusions of Chalcopyrite. The specimen comes from the old collection of Robert-Auguste Touchon and is accompanied by an old handwritten label which we will send to the buyer.
Schneeberg District, Erzgebirgskreis, Saxony/Sachsen Germany
Specimen size: 5.6 × 4 × 2.3 cm = 2.20” × 1.57” × 0.91”

Main crystal size: 0.7 × 0.1 cm = 0.28” × 0.04”

TA38: Bismuthinite

Sharp, pretty brilliant Bismuthinite single crystal just covered on its top and on its rear by a crust of botryoidal Marcasite. Super for the species. As usual we will send the analysis to the buyer of the specimen.
Farallón Mine, Farallón Viejo vein, Cerro Tazna, Atocha-Quechisla District, Nor Chichas Province, Potosí Department Bolivia (08/2001)
Specimen size: 4.4 × 1.3 × 0.4 cm = 1.73” × 0.51” × 0.16”

MA93X6: Bismuthinite with Marcasite

Magnificent sample due to its size, the high quantity of its crystals and their excellent definition with very good terminal faces and their intense luster. Unlike most of the Bismuthinite from this locality, the crystals aren’t partially or totally coated by Marcasite.
Farallón Mine, Farallón Viejo vein, Cerro Tazna, Atocha-Quechisla District, Nor Chichas Province, Potosí Department Bolivia (2001)
Specimen size: 13 × 10 × 6.3 cm = 5.12” × 3.94” × 2.48”

Main crystal size: 2.1 × 0.6 cm = 0.83” × 0.24”

MD27AM9: Bismuthinite with Pyrite-Marcasite

Group of very sharp and extraordinarily well defined Bismuthinite crystals, one of them clearly dominant, with good luster, associated with Pyrite-Marcasite.
We will send the specimen, which comes from the Robert J. Noble collection, in its original Perky box from that collection, which also contains the label.
Tazna Mine (Tazna-Rosario Mine), Cerro Tazna, Atocha-Quechisla District, Nor Chichas Province, Potosí Department Bolivia
Specimen size: 2.4 × 2.3 × 1.6 cm = 0.94” × 0.91” × 0.63”

TD27AN2: Bixbyite

Twinned Bixbyite crystal with very sharp twin shapes and an intense luster. A classic of American mineralogy. With a tiny bit of rhyolite matrix. We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Solar Wind claim, Thomas Range, Juab County, Utah USA
Specimen size: 1.1 × 1 × 0.8 cm = 0.43” × 0.39” × 0.31”

AP63M9: Bixbyite

Sharp and very well defined cubic crystal. It is very bright and it is aerially implanted on a matrix of white volcanic rock.
Thomas Range, Juab County, Utah USA
Specimen size: 2.7 × 2 × 2.2 cm = 1.06” × 0.79” × 0.87”

ET48AM4: Bixbyite with Hausmannite and Celestine

Group of pseudocubic Bixbyite crystals, large for the species, lustrous, on matrix and associated with small, very lustrous, octahedral Hausmannite crystals.
The specimen is from the Peter Rosewarne collection (number Rc899), whose label we will send to the buyer.
N'Chwaning III Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa (2011)
Specimen size: 10 × 7.4 × 4.6 cm = 3.94” × 2.91” × 1.81”

Main crystal size: 2.3 × 2.2 cm = 0.91” × 0.87”

TG96W4: Bixbyite with Hausmannite and Celestine

Group of extraordinarily large cubic crystals of Bixbyite. They are very bright and form polycrystalline growths, with small crystals of Hausmannite and small white coatings of Celestine.
N'Chwaning III Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa (2011)
Specimen size: 10 × 7.4 × 4.6 cm = 3.94” × 2.91” × 1.81”

MD64AK3: Bixbyite with Sturmanite and Calcite

Group of very sharp Bixbyite crystals, of cubic habit, very bright, on matrix, with Calcite and small Sturmanite crystals.
The specimen is from the Carles Manresa collection, whose label we will send to the buyer.
N'Chwaning III Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa
Specimen size: 4.4 × 3.8 × 2.7 cm = 1.73” × 1.50” × 1.06”

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

ME46AE9: Bixbyite with Topaz

Aggregate, on a rocky matrix, of very transparent and bright Topaz crystals with very well defined cubo-octahedral Bixbyite crystals with a rare laminar shape. Small crystals of Hematite coat some faces of the Bixbyite crystals. An excellent thumbnail, very esthetic.
Thomas Range, Juab County, Utah USA
Specimen size: 2.2 × 1.9 × 1.6 cm = 0.87” × 0.75” × 0.63”

12721 results found.

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