Ottemannite

General Information:
 Chemical Formula:
Sn2S3
 Composition:
(Molecular Weight = 333.62 gm)
Tin 71.17 % Sn
Sulfur 28.83 % S 
 Empirical Formula:
Sn2S3
 IMA Status:
Approved IMA 1966
Physical Properties:
 Color:
reddish gray.
 Density:
4.835
 Diaphaniety:
Opaque
 Hardness:
2 - Gypsum
 Luster:
Metallic
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