General Information:
Chemical Formula:
Fe++Ta2O6
Composition:
(Molecular Weight = 513.74 gm)
Tantalum 70.44 % Ta
Iron 10.87 % Fe
Oxygen 18.69 % O
Empirical Formula:
Fe2+Ta2O6
Physical Properties:
Cleavage:
[010] Distinct
Color:
brownish black or black.
Density:
8.2
Diaphaniety:
Opaque
Hardness:
6-6.5 - Orthoclase-Pyrite
Luster:
Sub Metallic
Streak:
black brown
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