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Mineral specimens search results for [ Chalcocite ]Page bottom

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TB96Z2: Chalcocite and Djurleite with Chalcopyrite
A novelty at Tucson 2014. Aggregate of extraordinarily elongated Chalcocite crystals completely coated by iridescent Chalcopyrite, with dominant violet and golden yellow shades. By recent reports, it seems that in some cases the Chalcocite crystals are partially replaced by Djurleite.
Tongshankou Mine, Edong, Daye, Huangshi Prefecture, Hubei Province  China (2013)
Specimen size: 4.5 × 3.6 × 2.8 cm = 1.77” × 1.42” × 1.10”
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TX66Z2: Chalcocite and Djurleite with Chalcopyrite
A novelty at Tucson 2014. Aggregate of extraordinarily elongated Chalcocite crystals completely coated by iridescent Chalcopyrite, with dominant green and violet shades. By recent reports, it seems that in some cases the Chalcocite crystals are partially replaced by Djurleite.
Tongshankou Mine, Edong, Daye, Huangshi Prefecture, Hubei Province  China (2013)
Specimen size: 7.2 × 0.5 × 0.5 cm = 2.83” × 0.20” × 0.20”
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TX96Z2: Chalcocite and Djurleite with Chalcopyrite
A novelty at Tucson 2014. Aggregate of elongated Chalcocite crystals with very well defined faces and edges finished with an arborescent growth and completely coated by iridescent Chalcopyrite, with dominant blue shades. By recent reports, it seems that in some cases the Chalcocite crystals are partially replaced by Djurleite.
Tongshankou Mine, Edong, Daye, Huangshi Prefecture, Hubei Province  China (2013)
Specimen size: 4.9 × 1.5 × 2.1 cm = 1.93” × 0.59” × 0.83”
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TY38Z2: Chalcocite and Djurleite with Chalcopyrite
A novelty at Tucson 2014. Aggregate of extraordinarily elongated Chalcocite crystals and arborescent growths completely coated by iridescent Chalcopyrite, with dominant blue shades. By recent reports, it seems that in some cases the Chalcocite crystals are partially replaced by Djurleite.
Tongshankou Mine, Edong, Daye, Huangshi Prefecture, Hubei Province  China (2013)
Specimen size: 5.5 × 4.7 × 3.8 cm = 2.17” × 1.85” × 1.50”

Main crystal size: 4 × 1.6 cm = 1.57” × 0.63”
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TD16AD0: Chalcocite coating Pyrite
A novelty at Tucson 2016 (but found in 2013). Complex Pyrite crystal, very rich in faces that are black colored due to a uniform Chalcocite coating, very bright and on matrix, with small (not coated) Pyrite crystals.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2013)
Specimen size: 5.7 × 5.7 × 3.7 cm = 2.24” × 2.24” × 1.46”
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TB46AD0: Chalcocite coating Pyrite
A novelty at Tucson 2016 (but found in 2013). Complex Pyrite crystal, very rich in faces that are black colored due to a uniform Chalcocite coating, very bright and on matrix, with small (not coated) Pyrite crystals.
This specimen has been reviewed and published in the special "Milpillas" of the magazine ‘Lapis’ number 07-08/2017, page 26
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2013)
Specimen size: 8.4 × 5.7 × 4.8 cm = 3.31” × 2.24” × 1.89”

Main crystal size: 2.1 × 1.6 cm = 0.83” × 0.63”
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TMA13AN8: Chalcocite on Pyrite
Floater Pyrite crystal, with dominant pyritohedron faces beveled by those of the octahedron, black in color due to a uniform coating of Chalcocite, not a pseudomorph, a case similar to the Chalcocite specimens from the Milpillas mine. We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label.
Chino Mine, Santa Rita, Santa Rita District, Grant County, New Mexico  USA
Specimen size: 2.7 × 2.4 × 2.4 cm = 1.06” × 0.94” × 0.94”
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TN26AL4: Chalcocite on Pyrite
Complex Pyrite crystal, very rich in faces, that is colored black due to a uniform Chalcocite coating, with good luster and on matrix. We will deliver the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label. The Chalcocites were analyzed and we will send a copy of that analysis to the buyer.
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2013)
Specimen size: 2.8 × 2.6 × 2.4 cm = 1.10” × 1.02” × 0.94”

Main crystal size: 1.8 × 0.9 cm = 0.71” × 0.35”
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TC2150NKA: Chalcocite on Pyrite
Very sharp Chalcocite crystals that form hexagonal cyclic twins with very well defined faces and edges, flattened, lustrous, and on matrix. These specimens were analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain (09-11/2019)
Specimen size: 5.3 × 2.1 × 2.2 cm = 2.09” × 0.83” × 0.87”
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NA86AL4: Chalcocite on Pyrite
Very sharp Chalcocite crystals, twinned, with well defined faces and edges, flattened, shiny, and on matrix. The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain (2019)
Specimen size: 9.1 × 8.3 × 2.7 cm = 3.58” × 3.27” × 1.06”

Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”
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NC27AL4: Chalcocite on Pyrite
Very sharp Chalcocite crystals, twinned, with well defined faces and edges, flattened, shiny, and on matrix. The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain
Specimen size: 4.1 × 3.6 × 3.2 cm = 1.61” × 1.42” × 1.26”
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RC12K9: Chalcocite with Bornite
Skeletal growths of Chalcocite, acompanied by parallel aggregates of small Bornite cubic crystals.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom
Specimen size: 2.4 × 2.0 × 1.4 cm = 0.94” × 0.79” × 0.55”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”
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RB63J5: Chalcocite with Bornite
Excellent classic miniature. Group of prismatic crystals of very well defined faces and edges.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom
Specimen size: 2.6 × 1.9 × 1.7 cm = 1.02” × 0.75” × 0.67”
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RA86J5: Chalcocite with Bornite
Excellent classic miniature. Group of tabular pseudohexagonal crystals of very well defined faces and edges.
Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall  England / United Kingdom
Specimen size: 3 × 2.6 × 1.7 cm = 1.18” × 1.02” × 0.67”

Main crystal size: 0.4 × 0.4 cm = 0.16” × 0.16”
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ND47AM4: Chalcocite with Bornite after Chalcocite and Pyrite
Very sharp crystals of Chalcocite as sharp twins, shiny, with a metallic gray tone, on Bornite pseudomorphic after Chalcocite, with an intense metallic blue color and with Pyrite microcrystals. The specimen comes from the last find before the definitive closure of open-pit mining here, and this is the first time that collector quality Bornite has appeared from this locality.
This material has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, fase 6, levels 130-135, ↓175 m., Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain (01/2020)
Specimen size: 5.6 × 4.9 × 3.3 cm = 2.20” × 1.93” × 1.30”
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FA77: Chalcocite with Calcite
Again, something extremely unusual from Martín. This well formed Chalcocite which is aerial on the Calcite matrix comes from Chile. On Oliete's label the location is written as being Chuquicamata. After hard investigations about Chilean mineral localities I'm able to tell that it must came from Copiapó and I'm also able to say that I have never seen anything similar in my life and I'm sure that not too much other people have either. Well, it is good, sharp and extremely original.
Copiapó Province, Atacama Region  Chile
Specimen size: 8.5 × 7 × 3.6 cm = 3.35” × 2.76” × 1.42”
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NF13AL4: Chalcocite with Calcite
Very sharp Chalcocite crystals that form flattened twins with well defined faces and edges, brilliant, on matrix, with coatings of Calcite crystals. The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain
Specimen size: 4.4 × 3.9 × 2.4 cm = 1.73” × 1.54” × 0.94”
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ND26AL4: Chalcocite with Calcite
Very sharp Chalcocite crystals that form hexagonal cyclic twins with well defined faces and edges, flattened, with good luster, on a matrix covered with small white Calcite crystals. The specimen has been analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain
Specimen size: 5.5 × 3.5 × 1.6 cm = 2.17” × 1.38” × 0.63”

Main crystal size: 0.5 × 0.4 cm = 0.20” × 0.16”
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TFF86AN7: Chalcocite with Calcite
Stalactitic growths of Chalcocite covered by a thin film of iridescent Chalcopyrite, with dominant blue and purple tones. On a Calcite matrix. From the existing bibliography, it is deduced that in some cases Chalcocite may be partially substituted by Djurleite.
Tongshankou Mine, Edong, Daye, Huangshi Prefecture, Hubei Province  China (2019)
Specimen size: 5.3 × 3 × 2.1 cm = 2.09” × 1.18” × 0.83”
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NF28AM5: Chalcocite with Calcite
Very sharp crystals of Chalcocite that form hexagonal cyclic twins with well defined faces and edges. They are flattened, with bright luster, and are on matrix with Calcite crystals. The specimen comes from the first finds in this mine and is from the Ignacio Gaspar collection (number CAC-8), whose collection file we will send to the buyer together with a copy of the analysis.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain (±2011)
Specimen size: 5 × 3.5 × 4 cm = 1.97” × 1.38” × 1.57”
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NZ89AL5: Chalcocite with Calcite
Growth on matrix of highly profiled Chalcocite crystals that form thick twins with a hexagonal outline, with very well defined faces and edges, bright, on matrix, with Calcite crystal coatings. These specimens were analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain
Specimen size: 8.5 × 6.3 × 3.6 cm = 3.35” × 2.48” × 1.42”
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NP89AL5: Chalcocite with Calcite
Growth on matrix of highly profiled Chalcocite crystals that form thick twins with a hexagonal outline, with very well defined faces and edges, bright, on matrix, with Calcite crystal coatings. These specimens were analyzed and we will send a copy of the analysis to the buyer.
This sample has been referenced and pictured, as a novelty in Ste. Marie Virtual 2020, in the magazine 'Le Règne Minéral' number 154, page 45
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain
Specimen size: 5.8 × 4 × 3.7 cm = 2.28” × 1.57” × 1.46”

Main crystal size: 0.6 × 0.5 cm = 0.24” × 0.20”
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VD90AE4: Chalcocite with Calcite
Single and very sharp Chalcocite crystal with very well defined faces and edges, bright and on matrix, with acute scalenohedral Calcite crystals.
The sample is from the Silvane collection whose label we’ll send to the buyer.
Dzhezkazgan Mine, Dzhezkazgan, Karaganda Region  Kazakhstan (1997)
Specimen size: 6 × 3.2 × 2.2 cm = 2.36” × 1.26” × 0.87”
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TMB94AQ0: Chalcocite with Calcite
Twinned very sharp Chalcocite crystals, with very sharp terminations, between shiny and matte, on matrix, with small white Calcite crystals. The specimen comes from the Ignacio Gaspar Sintes collection (number CAC-1) and was previously in that of Martín Oliete Fontela (number 157). We will send the buyer the labels from both collections.
Copiapó Province, Atacama Region  Chile
Specimen size: 8.4 × 6.7 × 3.7 cm = 3.31” × 2.64” × 1.46”

Main crystal size: 1.9 × 1.4 cm = 0.75” × 0.55”
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NJ16AL5: Chalcocite with Calcite
Growth on matrix of highly profiled Chalcocite crystals, of considerable size for the species, which form thick twins with a hexagonal outline, with very well defined faces and edges, bright, on matrix, with coatings of Calcite crystals. These specimens were analyzed and we will send a copy of the analysis to the buyer.
Las Cruces Mine, Gerena-Guillena-Salteras, Comarca Sierra Norte, Seville, Andalusia  Spain
Specimen size: 8.6 × 8 × 7.6 cm = 3.39” × 3.15” × 2.99”

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