General Information:
Chemical Formula:
Y2(SiO4)(CO3)
Composition:
(Molecular Weight = 329.90 gm)
Yttrium 53.90 % Y
Silicon 8.51 % Si
Carbon 3.64 % C
Oxygen 33.95 % O
Empirical Formula:
Y2(SiO4)(CO3)
IMA Status:
Approved IMA 1987
Physical Properties:
Cleavage:
[011] Distinct
Color:
brown, colorless, gray pink, white, or purple gray.
Density:
4.47
Hardness:
5.5-6 - Knife Blade-Orthoclase
Luster:
Vitreous (Glassy)
Streak:
white
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