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0 item @ $0.00  

Bornite

#PD31705

Bornite

#PD31705
Availability
Sold
Size
6 x 2 x 2.5 cm - Sm Cabinet 
Formula
Cu5FeS4 (RRUFF)
Locality
Cornwall, England
Tagged
sulfide , copper

May not be the most aesthetic (maybe pathetic) Bornite around, but has good provenance - a Geo. English label and a University of Chicago label. Shows nice iridescent 2-3mm crystals. Number on specimen matches labels.

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
Phillips Collection
Mineralpedia
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Previously Sold Bornite
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WebMineral
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