General Information:
Chemical Formula:
(Th,Pb)1-xAl3(PO4,SiO4)2(OH)6 (?)
IMA Status:
Approved IMA 1972
Physical Properties:
Cleavage:
None
Color:
cream white.
Density:
3.38
Diaphaniety:
Transparent to Translucent
Hardness:
3-4 - Calcite-Fluorite
Luster:
Vitreous (Glassy)
Streak:
white
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