General Information:
Chemical Formula:
Na2Si2O5·5(H2O)
Composition:
(Molecular Weight = 272.22 gm)
Sodium 16.89 % Na
Silicon 20.63 % Si
Hydrogen 3.70 % H
Oxygen 58.77 % O
Empirical Formula:
Na2(Si2O5)·5(H2O)
IMA Status:
Approved IMA 1980
Physical Properties:
Cleavage:
[100] Perfect, [010] Perfect
Color:
colorless or white.
Density:
1.94
Diaphaniety:
Transparent
Hardness:
2 - Gypsum
Luster:
Vitreous - Pearly
Streak:
white
More details...