Mineral: Covellite
Locality: Leonard Mine, Butte, Butte District, Silver Bow County, Montana, USA
Dimensions: 6.2 x 6.7 cm.

Description: Iridescent laminar blue covellite associated with pyrite and quartz. I acquired this piece about 25 years ago from a collector who told me that it had been in his collection for many years and that he had originally obtained the specimen from Ed McDole.

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