General Information:
Chemical Formula:Ca(Y,Th)Al5(SiO4)2(PO4,SO4)2(OH)7·6(H2O)
IMA Status:Approved IMA 1987
Physical Properties:
Cleavage:None
Color:white.
Density:3.07 - 3.15, Average = 3.11
Hardness:3.5-4 - Copper Penny-Flourite
Luster:Greasy (Oily)
Streak:white
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