General Information:
Chemical Formula:
FeSe2
Composition:
(Molecular Weight = 213.77 gm)
Iron 26.13 % Fe
Selenium 73.87 % Se
Empirical Formula:
Fe2+Se2
Physical Properties:
Cleavage:
[???] Perfect
Color:
bronze, steel gray, or silver white.
Density:
7.21
Diaphaniety:
Opaque
Hardness:
6-6.5 - Orthoclase-Pyrite
Luster:
Metallic
Streak:
black
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