Bariopyrochlore

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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