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0 item @ $0.00  

Bornite

#RW53432

Bornite

#RW53432
Availability
Sold
Size
5 x 4 x 5 cm - Miniature 
Formula
Cu5FeS4 (RRUFF)
Locality
Steward mine, Butte dist., Silver Bow Co., Montana, United States
Tagged
sulfide , copper

Purplish to greenish blue to brassy gold iridescent massive Bornite - I love this stuff.

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.

Collection
Robert J. Waidler Collection
Mineralpedia
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