General Information:
Chemical Formula:
Na3Mn3Ti0.25Si8O20(OH)2·10(H2O)
Composition:
(Molecular Weight = 1,004.59 gm)
Sodium 6.87 % Na
Titanium 1.19 % Ti
Manganese 16.41 % Mn
Silicon 22.37 % Si
Hydrogen 2.21 % H
Oxygen 50.96 % O
Empirical Formula:
Na3Mn2+3Ti0.25Si8O20OH2·10(H2O)
IMA Status:
Approved IMA 1973
Physical Properties:
Cleavage:
[100] Perfect, [010] Perfect, [001] Perfect
Color:
brown, violet red, golden yellow, or reddish brown.
Density:
2.39
Hardness:
3 - Calcite
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