General Information:
Chemical Formula:
K2Na6Be4Si14O36·9(H2O)
Composition:
(Molecular Weight = 1,383.50 gm)
Potassium 5.65 % K
Sodium 9.97 % Na
Beryllium 2.61 % Be
Silicon 28.42 % Si
Hydrogen 1.31 % H
Oxygen 52.04 % O
Empirical Formula:
K2Na6Be4(Si14O36)·9(H2O)
IMA Status:
Approved IMA 1973
Physical Properties:
Cleavage:
[100] Distinct, [010] Distinct, [001] Distinct
Color:
colorless, yellow, yellowish white, or white.
Density:
2.33
Diaphaniety:
Transparent to Translucent
Hardness:
5-6 - Between Apatite and Orthoclase
Luster:
Vitreous (Glassy)
Streak:
white
More details...