Wadeite

General Information:
 Chemical Formula:
K2ZrSi3O9
 Composition:
(Molecular Weight = 397.67 gm)
Potassium 19.66 % K 
Zirconium 22.94 % Zr
Silicon 21.19 % Si
Oxygen 36.21 % O 
 Empirical Formula:
K2ZrSi3O9
Physical Properties:
 Cleavage:
None
 Color:
colorless, violet, light lilac, or pink.
 Density:
3.1 - 3.13, Average = 3.11
 Diaphaniety:
Transparent
 Hardness:
5.5-6 - Knife Blade-Orthoclase
 Luster:
Adamantine
 Streak:
white
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