General Information:
Chemical Formula:
(Ca,Na)3(Zr,Ti,Y)Si2O7(O,OH,F)2
Physical Properties:
Cleavage:
[110] Distinct, [110] Distinct
Color:
brown, colorless, yellow brown, honey yellow, or light yellow.
Density:
3.267
Diaphaniety:
Transparent to Translucent
Hardness:
5.5 - Knife Blade
Luster:
Vitreous - Greasy
Streak:
white
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