General Information:
Chemical Formula:
NaNa2(Mg2Fe+++2Li)Si8O22(OH)2
Composition:
(Molecular Weight = 846.90 gm)
Sodium 8.14 % Na
Lithium 0.82 % Li
Magnesium 5.74 % Mg
Iron 13.19 % Fe
Silicon 26.53 % Si
Hydrogen 0.24 % H
Oxygen 45.34 % O
Empirical Formula:
Na3Mg2Fe3+2Li(Si8O22)(OH)2
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[???] Perfect
Color:
dark red.
Density:
3.11
Diaphaniety:
Translucent
Hardness:
6 - Orthoclase
Luster:
Vitreous (Glassy)
Streak:
light red
More details...