General Information:
Chemical Formula:
(Mn++,Mg)2Si2O6
Composition:
(Molecular Weight = 246.73 gm)
Magnesium 4.93 % Mg
Manganese 33.40 % Mn
Silicon 22.77 % Si
Oxygen 38.91 % O
Empirical Formula:
Mn2+1.5Mg0.5Si2O6
IMA Status:
Approved IMA 1977
Physical Properties:
Cleavage:
[???] Perfect
Color:
pink brown or reddish brown.
Density:
3.66
Diaphaniety:
Transparent to Translucent
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Vitreous (Glassy)
Streak:
light brown
More details...