General Information:
Chemical Formula:
KNaZrSi3O9·2(H2O)
Composition:
(Molecular Weight = 417.59 gm)
Potassium 9.36 % K
Sodium 5.51 % Na
Zirconium 21.85 % Zr
Silicon 20.18 % Si
Hydrogen 0.97 % H
Oxygen 42.14 % O
Empirical Formula:
KNaZrSi3O9·2(H2O)
Environment:
Found in small cavities in an alacime nepheline syenite.
IMA Status:
Approved IMA 1984
Locality:
Wind Mountain laccolith, Otero County, New Mexico.
Name Origin:
The name honors Prof. George Y. Chao of Carlton University, Ottawa, Canada, for his work with Zr silicates.
Physical Properties:
Cleavage:
None
Color:
colorless or white.
Density:
2.7
Diaphaniety:
Transparent
Hardness:
5 - Apatite
Streak:
white
More details...