Calciobetafite

General Information:
 Chemical Formula:
Ca2(Ti,Nb)2(O,OH)7
 IMA Status:
Approved IMA 1983
Physical Properties:
 Color:
reddish brown.
 Density:
4.2 - 4.5, Average = 4.34
 Diaphaniety:
Subtranslucent to Opaque
 Hardness:
4.5-5.5
 Luster:
Resinous
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