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Acanthite : Ag2S, Silver : Ag, Quartz : SiO2, Pyrite : FeS2 | |
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Bulldog Mountain Mine, Creede District, Mineral Co., Colorado, USA Small partly coroded crystals of acanthite, with silver wires. On quartz and pyrite. Speciman is 1.3cm across. Photographed by, and in the collection of, Karl Volkman |
| © Karl Volkman | Photo ID: 8731 View Count: 862 |
Acanthite : Ag2S, Silver : Ag, Calcite : CaCO3, Quartz : SiO2 | |
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Bulldog Mountain Mine, Creede District, Mineral Co., Colorado, USA 2mm crude Acanthite with a silver wire growing on it. Photographed by, and in the collection of Karl Volkman. |
| © Karl Volkman03/05 | Photo ID: 29496 View Count: 486 |
Acanthite : Ag2S, Silver : Ag, Quartz : SiO2 | |
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Bulldog Mountain Mine, Creede District, Mineral Co., Colorado, USA A rich, old-time, showy specimen of two, tiny wire silver nests sitting at the base of a rich mass of acanthite on milky quartz from the famous Bulldog Mountain Mine at Creede, Colorado. Ex Richard Hauck Collection. 4.5 x 3.5 x 2.5 cm |
| © Rob Lavinsky | Photo ID: 62281 View Count: 296 |
Acanthite : Ag2S, Rhodochrosite : MnCO3 | |
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Zanett tunnel, Grizzly Bear Mine, Ouray, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA Acanthite with rhodochrosite, quartz, and pyrite. Field of view is 9.4 mm. The acanthite seems to grow on native silver after the specimen is collected. My theory is that the presents of sulfides (pyrite) produces this growth. Specimen collected by Dorothy Atlee at the Zannet tunnel; Ouray, Colorado, USA and photo by Phil McCollum. |
| Photo ID: 134129 View Count: 209 | |
Acanthite : Ag2S, Silver : Ag | |
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Bulldog Mountain Mine, Creede District, Mineral Co., Colorado, USA Width of field is 5.4 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (10 exposures). Equipment: Nikon D-100 digital camera on a homemade microscope. This is an acanthite crust on crystalline silver. The one in the middle looks like a giraffe's head doesn't it? |
| © 2008 Jesse Crawford | Photo ID: 178118 View Count: 110 |
Acanthite : Ag2S | |
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Bulldog Mountain Mine, Creede District, Mineral Co., Colorado, USA Width of field is 2.5mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (6 exposures). Equipment: Nikon D-100 on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 174328 View Count: 104 |
Acanthite : Ag2S | |
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Bulldog Mountain Mine, Creede District, Mineral Co., Colorado, USA Width of field 0,9mm. Collection of Jesse Crawford. Compositing software: CombineZP. Equipment: Nikon D-100 digital camera on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 197763 View Count: 76 |
Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2, Diopside : CaMg[Si2O6] | |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA A very good hand specimen for what is known as "uralite". These are prismatic crystals of diopside to 1 cm in length, these replaced by green actinolite. A very good pseudomorph specimen that is in very good shape damage-wise. Sits nicely for display. Size: 9.5 x 7.5 x 6.2 cm. Ex Don Belsher collection. |
| © Dan Weinrich | Photo ID: 135994 View Count: 200 |
Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2, Diopside : CaMg[Si2O6] | |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA A choice example of this noted Colorado pseudomorph with prismatic diopside crystals to 3 cm in length set on a 7.8 x 6.2 x 6.4 cm matrix. The diopside crystals are replaced by green actinolite. This is a large crystal for one of these, known locally as "uralite". Minor black magnetite in association. Ex Don Belsher collection. Ref: Rocks & ... |
| © Dan Weinrich | Photo ID: 135996 View Count: 186 |
Actinolite : ☐Ca2(Mg,Fe2+)5(Si8O22)(OH)2 | |
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Calumet Mine (Calumet; Calumet No. 2; Hecla; Hecla No. 2; Calumet Iron Mine; Calumet-Hecla-Smithville Magnetite Deposit; Patented Placer Claims: Calumet; Hecla-Williamson; Smithville No. 2; CF&I Company Mine), Turret District, Chaffee Co., Colorado, USA Width of field is 2.5 mm. Collection of Jesse Crawford. Equipment: Nikon D-100 digital camera on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 178120 View Count: 134 |
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