General Information:
Chemical Formula:
(V+++,Fe++,Fe+++,Ti)10O14(OH)2
Physical Properties:
Cleavage:
None
Color:
black.
Density:
4.69
Diaphaniety:
Opaque
Hardness:
5-5.5 - Apatite-Knife Blade
Luster:
Sub Metallic
Streak:
brownish black
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