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1 item @ $125.00  

Bornite

#53427

Bornite

#53427
Availability
Sold
Size
3.5 x 3 x 2.5 cm - Miniature 
Formula
Cu5FeS4 (RRUFF)
Locality
Steward mine, Butte dist., Silver Bow Co., Montana, United States
Tagged
ore mineral , sulfide

Blue to purple iridescent and massive chunk of Bornite.

Bornite

Formula
Cu5FeS4 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Reniform, Granular 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
copper red, bronze brown, purple 
Streak
grayish black 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness

Data courtesy of Webmineral.

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