Kamiokite

General Information:
 Chemical Formula:
Fe2Mo3O8
 Composition:
(Molecular Weight = 527.51 gm)
Iron 21.17 % Fe
Molybdenum 54.56 % Mo
Oxygen 24.26 % O 
 Empirical Formula:
Fe2+2Mo3O8
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
[???] Perfect
 Color:
iron black.
 Density:
5.96
 Diaphaniety:
Opaque
 Hardness:
4.5 - Between Fluorite and Apatite
 Luster:
Sub Metallic
 Streak:
black
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