General Information:
Chemical Formula:
(K,Ba)2(Ti,Fe+++)6O13
IMA Status:
Approved IMA 1980
Physical Properties:
Cleavage:
[100] Perfect, [201] Perfect
Color:
black.
Density:
3.94
Hardness:
5-6 - Between Apatite and Orthoclase
Luster:
Sub Metallic
Streak:
light brown
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