Covellite Crystals with Pyrite
Collection
John Betts - Fine Minerals
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.
Locality
Butte Mining District, Summit Valley, Silver Bow County, Montana
Dimensions
6.5 x 5.0 x 4.0 cm.
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