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Chalcocite from Butte Mining District, Summit Valley, Silver Bow County, Montana

 
Chalcocite from Butte Mining District, Summit Valley, Silver Bow County, Montana

DESCRIPTION:No. 18154
Mineral:Chalcocite
Locality:Butte Mining District, Summit Valley, Silver Bow County, Montana
Description:V-shaped formation of dark metallic chalcocite crystals perched on bright pyrite matrix. It is possible this is actually a pseudomorph after covellite crystals as their form appears to be similar.
Overall Size:34x30x25 mm
Crystals:10-15 mm
Status: Sold - Posted here for reference only
Buy similar: Minerals from Rocky Mountain States, USA > Sulfide & Sulfosalt Minerals

 

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