General Information:
Chemical Formula:
(Na,Ca,Fe++)(Sc,Mg,Fe++)Si2O6
Composition:
(Molecular Weight = 223.42 gm)
Sodium 6.17 % Na
Calcium 5.38 % Ca
Magnesium 3.26 % Mg
Scandium 12.07 % Sc
Iron 5.00 % Fe
Silicon 25.14 % Si
Oxygen 42.97 % O
Empirical Formula:
Na0.6Ca0.3Fe2+0.2Sc0.6Mg0.3Si2O6
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[110] Perfect
Color:
light green.
Density:
3.22
Diaphaniety:
Transparent to Translucent
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Vitreous (Glassy)
Streak:
white
More details...