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TE68D8: Copper
A large crystal of native Copper. It is a complete floater that is very esthetic given the perfect form of the main crystal.
Osceola Mine, Osceola No. 6, Osceola, Houghton County, Michigan  USA
Specimen size: 6.7 × 2.5 × 1.6 cm = 2.64” × 0.98” × 0.63”
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NA80C9: Copper
Shape, luster and color of the best quality for the locality.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA
Specimen size: 3.8 × 3 × 2.4 cm = 1.50” × 1.18” × 0.94”
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RB27I2: Copper
Dendritic growth of crystals, some of them very well defined, bright and with small coverage of Quartz.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA
Specimen size: 13.8 × 9.5 × 3 cm = 5.43” × 3.74” × 1.18”
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VA47Y9: Copper
Dendritic growth of flattened Copper crystals that, in some areas on the sample, show very well defined faces and edges. The piece, very aerial and with remains of the rocky matrix, is from a classic American mine.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA
Specimen size: 15.5 × 10 × 7 cm = 6.10” × 3.94” × 2.76”

Main crystal size: 1.2 × 0.6 cm = 0.47” × 0.24”
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EQ54AA1: Copper
Dendritic growths of small but very sharp crystals with very well defined faces and edges and the dominant forms of the octahedron, most of them with a very well defined spinel-twin law. Of very good quality for the locality.
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona  USA
Specimen size: 9.5 × 6 × 2.6 cm = 3.74” × 2.36” × 1.02”
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AC6AA6: Copper
Dendritic aggregates of crystals with very well defined faces and edges, on matrix. Copper is a very rare species at the classic locality of Sacarimb; specimens like this one were long believed to contain traces of gold, but precise, modern methods of analysis indicate that they consist of pure native Copper, with no other significant elements.
Sacarîmb (Nagyág), Deva, Hunedoara  Romania
Specimen size: 6.4 × 5.1 × 3.2 cm = 2.52” × 2.01” × 1.26”

Main crystal size: 0.9 × 0.2 cm = 0.35” × 0.08”
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AD16AA6: Copper
Dendritic aggregates of crystals with very well defined faces and edges, on matrix. Copper is a very rare species at the classic locality of Sacarimb; specimens like this one were long believed to contain traces of gold, but precise, modern methods of analysis indicate that they consist of pure native Copper, with no other significant elements.
Sacarîmb (Nagyág), Deva, Hunedoara  Romania
Specimen size: 7 × 4.1 × 3.4 cm = 2.76” × 1.61” × 1.34”
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NA14V4: Copper
Arborescent growth of slightly defined crystals of native Copper with small grains of massive Quartz. It is from a new locality for Morocco, in which only this kind of samples of Copper are known. We hope that it will give agreeable surprises in the next future.
Tazalarht Quarry, Taroudant Province, Souss-Massa Region  Morocco (09/2011)
Specimen size: 7.7 × 4.4 × 3.3 cm = 3.03” × 1.73” × 1.30”
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NB14V4: Copper
Arborescent growth of slightly defined crystals of native Copper with small grains of massive Quartz. It is from a new locality for Morocco, in which only this kind of samples of Copper are known. We hope that it will give agreeable surprises in the next future.
Tazalarht Quarry, Taroudant Province, Souss-Massa Region  Morocco (09/2011)
Specimen size: 7.8 × 4.7 × 2.2 cm = 3.07” × 1.85” × 0.87”
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EA27: Copper
Excellent Copper complex crystal form, floater, complete in all sides, with a little bit of iridescent color giving more esthetics (and color stability) to the specimen.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (08-09/82)
Specimen size: 11 × 7.7 × 1.4 cm = 4.33” × 3.03” × 0.55”
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ET46K3: Copper
Group of rounded crystals with well defined faces at the top of the specimen and the same kind of crystals combined with small laminar hooked growths on the lower part.
Weijia, Chengmenshan, Jiujiang Prefecture, Jiangxi Province  China (2007)
Specimen size: 5 × 4.8 × 2 cm = 1.97” × 1.89” × 0.79”
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EV46AF7: Copper (neoformed)
Aggregate of deformed and rounded crystals. A curious growth that is the result of the removal of copper during the mining in which the copper recrystallizes sometimes acquiring the shapes of the objects and machines it has grown on.
In other words, this copper has been formed naturally but is "neoformed" since its origin may be due to human activity in an old abandoned mine.
Zlaté Hory, Olomouc Region, Moravia  Czech Republic (08/2014)
Specimen size: 8.8 × 4.5 × 3.2 cm = 3.46” × 1.77” × 1.26”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”
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ET86AF7: Copper (neoformed)
Aggregate of deformed and rounded crystals. A curious growth that is the result of the removal of copper during the mining in which the copper recrystallizes sometimes acquiring the shapes of the objects and machines it has grown on.
In other words, this copper has been formed naturally but is "neoformed" since its origin may be due to human activity in an old abandoned mine.
Zlaté Hory, Olomouc Region, Moravia  Czech Republic (04/2014)
Specimen size: 8.4 × 5.3 × 3.1 cm = 3.31” × 2.09” × 1.22”
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EX27AF7: Copper (neoformed)
Aggregate of deformed and rounded crystals. A curious growth that is the result of the removal of copper during the mining in which the copper recrystallizes sometimes acquiring the shapes of the objects and machines it has grown on.
In other words, this copper has been formed naturally but is "neoformed" since its origin may be due to human activity in an old abandoned mine.
Zlaté Hory, Olomouc Region, Moravia  Czech Republic (04/2014)
Specimen size: 12.2 × 7.2 × 3.5 cm = 4.80” × 2.83” × 1.38”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”
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TZ91AF1: Copper (skull)
Nodular growth of native Copper well known as a “skull,” that has partially preserved the walls of the original nodule and that has poorly defined crystallizations inside. An American classic with an old Minerals International label that we’ll send to the buyer.
Centennial Mine, Centennial No. 6 shaft, Centennial, Houghton County, Michigan  USA
Specimen size: 8.7 × 6.8 × 4.5 cm = 3.43” × 2.68” × 1.77”
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EC56AM1: Copper (spinel twin)
Arborescent growth of Copper crystals, some of them with dodecahedron-faced terminations and others that are extraordinarily sharp and elongated, with a very well defined spinel-law twin.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region  Morocco (2018)
Specimen size: 5.1 × 3.8 × 2.2 cm = 2.01” × 1.50” × 0.87”

Main crystal size: 1.5 × 0.4 cm = 0.59” × 0.16”
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TF12AJ1: Copper after Aragonite
Complete and doubly terminated, prismatic Copper replacement. It has very sharp edges and faces.
We will send the sample in its original Perkin’s box from the R.J. Noble collection, also containing the collection label on which it appears that it had previously been in the Sullivan collection.
Corocoro, Pacajes Province, La Paz Department  Bolivia
Specimen size: 1.6 × 1.4 × 1.6 cm = 0.63” × 0.55” × 0.63”
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TC70TR: Copper after Aragonite
Floater Copper pseudomorph after a twinned Aragonite crystal with sharp prismatic habit and well defined faces and edges.
San Agustín Mine, Corocoro, Pacajes Province, La Paz Department  Bolivia
Specimen size: 2.7 × 2.2 × 1.8 cm = 1.06” × 0.87” × 0.71”
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ET37AE2: Copper after Aragonite
Floater spheroidal aggregate of native Copper crystals pseudomorphous after Aragonite. The condition has very well retained the original pseudohexagonal aragonite shape. These Bolivian classics are usually in individual crystals, the aggregates with a many crystals are very rare.
San Agustín Mine, Corocoro, Pacajes Province, La Paz Department  Bolivia
Specimen size: 3 × 2.8 × 2.7 cm = 1.18” × 1.10” × 1.06”
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TC58Q8: Copper after Aragonite
Floater prismatic crystals pseudomorphous after a twinned Aragonite, with a very sharp hexagonal shape and very well defined faces and edges and partially coated by Malachite.
San Agustín Mine, Corocoro, Pacajes Province, La Paz Department  Bolivia (03-04/2010)
Specimen size: 2.2 × 1.7 × 1.8 cm = 0.87” × 0.67” × 0.71”
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TD58Q8: Copper after Aragonite
Floater group of doubly terminated prismatic crystals pseudomorphous after twinned Aragonite with a very sharp hexagonal shape and very well defined faces and edges.
San Agustín Mine, Corocoro, Pacajes Province, La Paz Department  Bolivia (03-04/2010)
Specimen size: 2.7 × 1.8 × 1.4 cm = 1.06” × 0.71” × 0.55”
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9TA89S0: Copper after Cuprite and with Cuprite
Group of very well developed crystals of native Copper, some of them perimorphs after Cuprite and coated by aggregates of octahedral crystals of the same species that are very bright and with slightly curved faces and edges. Origin from VMS ("volcanogenic massive sulphide") deposit
Poteryaevskoe Mine, block 2-1, ↓100 m., Rubtsovsky District, Altai Krai  Russia (20-25/11/2010)
Specimen size: 6.8 × 6.2 × 3.4 cm = 2.68”

Main crystal size: 0.9 × 0.6 cm = 0.35”
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TV90S0: Copper after Cuprite and with Cuprite
A novelty at Tucson 2011. Arborescent growths of octahedral crystals of native Copper perimorphs after Cuprite and partially covered by octahedral crystals of the same species that are very bright with slightly curved faces and edges.
Poteryaevskoe Mine, block 2-1, ↓100 m., Rubtsovsky District, Altai Krai  Russia (20-25/11/2010)
Specimen size: 5.4 × 4.2 × 2.3 cm = 2.13” × 1.65” × 0.91”
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TQ89W8: Copper after Cuprite with Cuprite
Aggregate of Copper crystals that are pseudomorphs and perimorphs after octahedral crystals of Cuprite, with a second generation of small octahedral crystals of Cuprite with vivid reddish reflections.
Poteryaevskoe Mine, block 2-1, ↓100 m., Rubtsovsky District, Altai Krai  Russia (20-25/11/2010)
Specimen size: 4.5 × 4.3 × 2.8 cm = 1.77” × 1.69” × 1.10”

Main crystal size: 1.5 × 1.2 cm = 0.59” × 0.47”
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TZ6V1: Copper and Calcite
Arborescent growth, on matrix, of very acute crystals of Copper. In spite of their fragile appearance, the aggregate is firmly attached to the matrix.
The sample is from the Desmond Sacco collection.
Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia
Specimen size: 2.4 × 2 × 1.7 cm = 0.94” × 0.79” × 0.67”

12722 results found. 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[4326-4350] [4351-4375] [4376-4400] [4401-4425] [4426-4450] [4451-4475] [4476-4500] [4501-4525] [4526-4550] [4551-4575] [4576-4600] [4601-4625] [4626-4650] [4651-4675] [4676-4700] [4701-4725] [4726-4750] [4751-4775] [4776-4800] [4801-4825] [4826-4850] [4851-4875] [4876-4900] [4901-4925] [4926-4950] [4951-4975] [4976-5000] [5001-5025] [5026-5050] [5051-5075] [5076-5100] [5101-5125] [5126-5150] [5151-5175] [5176-5200] [5201-5225] [5226-5250] [5251-5275] [5276-5300] [5301-5325] [5326-5350] [5351-5375] [5376-5400] [5401-5425] [5426-5450] [5451-5475] [5476-5500] [5501-5525] [5526-5550] [5551-5575] [5576-5600] [5601-5625] [5626-5650] [5651-5675] [5676-5700] [5701-5725] [5726-5750] [5751-5775] [5776-5800] [5801-5825] [5826-5850] [5851-5875] [5876-5900] [5901-5925] [5926-5950] [5951-5975] [5976-6000] [6001-6025] [6026-6050] [6051-6075] [6076-6100] [6101-6125] [6126-6150] [6151-6175] [6176-6200] [6201-6225] [6226-6250] [6251-6275] [6276-6300] [6301-6325] [6326-6350] [6351-6375] [6376-6400] 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[10476-10500] [10501-10525] [10526-10550] [10551-10575] [10576-10600] [10601-10625] [10626-10650] [10651-10675] [10676-10700] [10701-10725] [10726-10750] [10751-10775] [10776-10800] [10801-10825] [10826-10850] [10851-10875] [10876-10900] [10901-10925] [10926-10950] [10951-10975] [10976-11000] [11001-11025] [11026-11050] [11051-11075] [11076-11100] [11101-11125] [11126-11150] [11151-11175] [11176-11200] [11201-11225] [11226-11250] [11251-11275] [11276-11300] [11301-11325] [11326-11350] [11351-11375] [11376-11400] [11401-11425] [11426-11450] [11451-11475] [11476-11500] [11501-11525] [11526-11550] [11551-11575] [11576-11600] [11601-11625] [11626-11650] [11651-11675] [11676-11700] [11701-11725] [11726-11750] [11751-11775] [11776-11800] [11801-11825] [11826-11850] [11851-11875] [11876-11900] [11901-11925] [11926-11950] [11951-11975] [11976-12000] [12001-12025] [12026-12050] [12051-12075] [12076-12100] [12101-12125] [12126-12150] [12151-12175] [12176-12200] [12201-12225] [12226-12250] 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