General Information:
Chemical Formula:
(Y,Na)6(Zn,Fe+++)5Ti12O29(O,F)4
IMA Status:
Approved IMA 1974
Physical Properties:
Color:
black.
Density:
4.69
Diaphaniety:
Translucent to Opaque
Hardness:
6-6.5 - Orthoclase-Pyrite
Luster:
Sub Metallic
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