General Information:
Chemical Formula:
NaCr+++Si2O6
Composition:
(Molecular Weight = 227.15 gm)
Sodium 10.12 % Na
Chromium 22.89 % Cr
Silicon 24.73 % Si
Oxygen 42.26 % O
Empirical Formula:
NaCrSi2O6
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[110] Good
Color:
emerald green.
Density:
3.6
Diaphaniety:
Transparent to Translucent
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Vitreous (Glassy)
Streak:
light green
More details...