General Information:
Chemical Formula:
Cu+Fe+++O2
Composition:
(Molecular Weight = 151.39 gm)
Iron 36.89 % Fe
Copper 41.97 % Cu
Oxygen 21.14 % O
Empirical Formula:
CuFe3+O2
Locality:
Calumet and Arizona mine, Bisbee, Cochise Co., Arizona, USA.
Physical Properties:
Cleavage:
[1010] Indistinct
Color:
black.
Density:
5.41
Diaphaniety:
Opaque
Habits:
Crystalline - Coarse - Occurs as well-formed coarse sized crystals., Tabular - Form dimensions are thin in one direction.,
Hardness:
5.5 - Knife Blade
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
black
More details...