General Information:
Chemical Formula:
(Ba,Sr)2(Nb,Ti)2(O,OH)7
IMA Status:
Approved IMA 1977
Physical Properties:
Cleavage:
[111] Indistinct
Color:
green gray or yellow gray.
Density:
4
Diaphaniety:
Transparent to Translucent
Hardness:
4.5-5
Luster:
Resinous
Streak:
white
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