General Information:
Chemical Formula:(Y,Dy,Er)4(Ti,Sn)O(SiO4)2(F,OH)6
IMA Status:Discredited IMA 1987
Physical Properties:
Cleavage:None
Color:yellow.
Density:3.96
Diaphaniety:Transparent
Hardness:3.5-4 - Copper Penny-Flourite
Luster:Vitreous - Greasy
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