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Covellite Crystals with Pyrite
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Collection |
John Betts - Fine Minerals |
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Description |
Terminated bladed iridescent blue-black Covellite crystals to 15 mm with bright yellow Pyrite crystals to 3 mm on massive Pyrite matrix. The Covellite crystals formed in a vein allowing complete crystal development. Ex. Peter B. Nalle (1923-2010); acquired in 1982 from Trevillion-Johnson Gems, Butte, Mt. |
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Locality |
Butte Mining District, Summit Valley, Silver Bow County, Montana |
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Dimensions |
6.5 x 5.0 x 4.0 cm. |
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Specimen Grade |
B |
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Photograph |
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