General Information:
Chemical Formula:
Na2(Mn++,Mn+++)10Si11VO34(OH)4
IMA Status:
Approved IMA 1981
Physical Properties:
Cleavage:
[???] Perfect, [???] Perfect
Color:
light orange.
Density:
3.47
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Resinous - Greasy
Streak:
white
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