General Information:
Chemical Formula:
Na4Mn++5Si10O24(OH)6·6(H2O)
Composition:
(Molecular Weight = 1,241.63 gm)
Sodium 7.41 % Na
Manganese 22.12 % Mn
Silicon 22.62 % Si
Hydrogen 1.46 % H
Oxygen 46.39 % O
Empirical Formula:
Na4Mn2+5Si10O24(OH)6·6(H2O)
IMA Status:
Approved IMA 1982
Physical Properties:
Cleavage:
[0001] Perfect
Color:
yellow or bright yellow.
Density:
2.58 - 2.64, Average = 2.61
Hardness:
2 - Gypsum
Luster:
Earthy (Dull)
Streak:
white
More details...