General Information:
Chemical Formula:
CuFe2S3
Composition:
(Molecular Weight = 271.44 gm)
Iron 41.15 % Fe
Copper 23.41 % Cu
Sulfur 35.44 % S
Empirical Formula:
CuFe2+2S3
Locality:
Barracanao, Cuba.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
None
Color:
brass yellow or bronze yellow.
Density:
4.7
Diaphaniety:
Opaque
Habits:
Striated - Parallel lines on crystal surface or cleavage face., ,
Hardness:
3.5 - Copper Penny
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
black
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