File:Chalcopyrite-quartz (Idarado Mine, San Juan Mountains, Colorado, USA) 1.jpg
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| Description |
English: Chalcopyrite-quartz from the Tertiary of Colorado, USA. (public display, Durango & Silverton Narrow Gauge Railroad Museum, Durango, Colorado, USA)
This is a sample of a polymineralic hydrothermal vein that has intruded volcanic rocks of southwestern Colorado's San Juan Volcanic Field. The abundant brassy gold masses are chalcopyrite (CuFeS - copper iron sulfide). The whitish material is quartz (SiO2 - silica). The grayish material is probably one or more sulfides - galena or tetrahedrite or petzite. This rock comes from the Idarado Mine, a lead-copper-zinc mine in the San Juan Mountains. Geology & age: Argentine Vein, San Juan Volcanic Field, mid-Tertiary Locality: Idarado Mine, ~2.7 air miles southwest of the town of Ironton, southern Ouray County, San Juan Mountains, southwestern Colorado, USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/23083679036/ |
| Author | James St. John |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/23083679036 (archive). It was reviewed on 22 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 18:18, 22 December 2019 | | 3,895 × 2,779 (4.95 MB) | Ser Amantio di Nicolao (talk | contribs) | User created page with UploadWizard |
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