General Information:
Chemical Formula:
KFe2S3
Composition:
(Molecular Weight = 246.99 gm)
Potassium 15.83 % K
Iron 45.22 % Fe
Sulfur 38.95 % S
Empirical Formula:
KFe2+2S3
IMA Status:
Approved IMA 1970
Physical Properties:
Cleavage:
[110] Perfect
Color:
brownish black, gray, black, or steel gray.
Density:
3.1
Diaphaniety:
Opaque
Hardness:
4-5 - Fluorite-Apatite
Luster:
Metallic
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