General Information:
Chemical Formula:
NaMnZn2(Ti,Fe+++)6Ti12O38
IMA Status:
Approved IMA 1966
Physical Properties:
Cleavage:
None
Color:
black.
Density:
4.42
Diaphaniety:
Subtranslucent to Opaque
Hardness:
7.5 - Garnet
Luster:
Sub Metallic
Streak:
gray
More details...