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0 item @ $0.00  

Copper

#PD30641

Copper

#PD30641
Availability
Sold
Size
8.5 x 4.5 x 2 cm - Sm Cabinet 
Formula
Cu (RRUFF)
Locality
White Pine mine, Ontonagon Co., Michigan, United States
Tagged
Ore Minerals

The copper deposits of the White Pine mine are large stratiform deposits in the Nonesuch shale of upper Precambrian age. The ore is typically finely disseminated barely seen in the shale. Copper concentrations average 1-2% Copper. Higher grade zones occur in open fractures from a second pulse of mineralization and the Copper can crystallize nicely as with this specimen which shows superb micro octahedral crystals with a peculiar brassy luster. Micro Bornite (?) crystals are sprinkled about the Copper. Great showy specimen.

Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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