General Information:
Chemical Formula:
NaFe+++3Si8O20·4(H2O)
Composition:
(Molecular Weight = 807.26 gm)
Sodium 2.85 % Na
Iron 20.75 % Fe
Silicon 27.83 % Si
Hydrogen 1.00 % H
Oxygen 47.57 % O
Empirical Formula:
NaFe3+3Si8O20·4(H2O)
IMA Status:
Approved IMA 1984
Physical Properties:
Cleavage:
[???] Good
Color:
reddish brown.
Density:
2.465
Diaphaniety:
Transparent
Luster:
Vitreous (Glassy)
Streak:
brownish yellow
More details...