Sakuraiite

General Information:
 Chemical Formula:
(Cu,Zn,Fe,In,Sn)S
 Composition:
(Molecular Weight = 98.54 gm)
Zinc 13.27 % Zn
Indium 17.48 % In
Iron 11.34 % Fe
Copper 19.35 % Cu
Tin 6.02 % Sn
Sulfur 32.54 % S 
 Empirical Formula:
Cu0.3Zn0.2Fe2+0.2In0.15Sn0.05S
 IMA Status:
Approved IMA 1967
Physical Properties:
 Cleavage:
None
 Color:
greenish gray or greenish steel gray.
 Density:
4.45
 Diaphaniety:
Opaque
 Hardness:
4 - Fluorite
 Luster:
Metallic
 Streak:
lead gray
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