General Information:
Chemical Formula:
(Cu,Co,Ni)3Se4
Composition:
(Molecular Weight = 500.87 gm)
Cobalt 10.59 % Co
Copper 22.84 % Cu
Nickel 3.52 % Ni
Selenium 63.06 % Se
Empirical Formula:
Cu1.8Co0.9Ni0.3Se4
Physical Properties:
Cleavage:
[001] Distinct
Color:
bronze.
Density:
6.6
Diaphaniety:
Opaque
Hardness:
3.5 - Copper Penny
Luster:
Metallic
Streak:
black
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