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1.3" Indigo-Blue Covellite Formation - Butte, Montana

Indigo-Blue Covellite Formation - Butte, Montana #127008
This is a 1.3" wide formation of indigo-blue covellite that was collected from the Leonard Mine in the Butte Mining District of Butte, Montana. There is a small spot of red coloration along one side of this specimen.

Covellite is a copper sulfide mineral with the basic chemical formula CuS. Well-formed covellite crystals are considered rare: most examples are found in massive forms. It typically exhibits an iridescent effect with a lustrous indigo-blue color and occasional spots of red. Covellite commonly formsas a secondary mineral in copper sulfide deposits. Butte, Montana and Tuscany, Italy are two locations that have produced exceptional covellite crystal specimens.
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DETAILS
SPECIES
Covellite
LOCATION
Leonard Mine, Butte Mining District, Butte, Montana.
SIZE
1.3" wide
CATEGORY
Covellite
ITEM
#127008
SHIPPING
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