Hemloite

General Information:
 Chemical Formula:
(As,Sb)2(Ti,V,Fe,Al)12O23OH
 IMA Status:
Approved IMA
Physical Properties:
 Cleavage:
None
 Color:
black, dark gray, or dark brown.
 Diaphaniety:
Opaque
 Hardness:
6.5 - Pyrite
 Luster:
Sub Metallic
 Streak:
black
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