General Information:
Chemical Formula:
(Cu,Co)2(CO3)(OH)2
Composition:
(Molecular Weight = 218.07 gm)
Cobalt 17.84 % Co
Copper 39.05 % Cu
Hydrogen 0.92 % H
Carbon 5.51 % C
Oxygen 36.68 % O
Empirical Formula:
Cu1.34Co0.66(CO3)(OH)2
Environment:
Oxidized zone of a Cu-Co deposit.
IMA Status:
Approved IMA 1979
Locality:
Kolwezi-Kamoto-Musonoi, southern Shava, Zaire.
Name Origin:
Named for the mine locality.
Physical Properties:
Color:
beige brown, green, or black.
Density:
3.97
Diaphaniety:
Translucent to Subopaque
Habits:
Nodular - Tuberose forms having irregular protuberances over the surface., Encrustations - Forms crust-like aggregates on matrix.,
Hardness:
4 - Fluorite
Luster:
Vitreous (Glassy)
Streak:
beige
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