Lapieite

General Information:
 Chemical Formula:
CuNiSbS3
 Composition:
(Molecular Weight = 340.18 gm)
Copper 18.68 % Cu
Nickel 17.25 % Ni
Antimony 35.79 % Sb
Sulfur 28.28 % S 
 Empirical Formula:
CuNiSbS3
 IMA Status:
Approved IMA 1983
Physical Properties:
 Cleavage:
[100] Distinct
 Color:
steel gray.
 Density:
4.966
 Diaphaniety:
Opaque
 Hardness:
4.5-5
 Luster:
Metallic
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