General Information:
Chemical Formula:KNaZrSi3O9·2(H2O)
Composition:(Molecular Weight = 417.59 gm)Potassium 9.36 %
K Sodium 5.51 %
NaZirconium 21.85 %
ZrSilicon 20.18 %
SiHydrogen 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
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