| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Montana > Chalcocite pseudomorphs after Covellite with Enargite, Pyrite and Quartz |
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| DESCRIPTION: | No. 78480 |
| Mineral: | Chalcocite pseudomorphs after Covellite with Enargite, Pyrite and Quartz |
| Locality: | Butte District, Summit Valley, Silver Bow County, Montana |
| Description: | Platy gray-black chalcocite pseudomorphs after thin bladed covellite crystals to 22 mm with lustrous black striated enargite crystals to 10 mm and yellow-metallic pyrite crystals to 8 mm plus lustrous transparent colorless quartz crystals to 2 mm. Ex. Fred Meissner (1931-2007); originally acquired in 2001 from World Museum of Mining (Butte, MT) |
| Overall Size: | 8.5x5x2.5 cm |
| Crystals: | 5-22 mm pseudos |
| Archived: | For reference only |
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