General Information:
Chemical Formula:
(Mn,Ca)3Si3O9
Composition:
(Molecular Weight = 381.92 gm)
Calcium 7.87 % Ca
Manganese 32.37 % Mn
Silicon 22.06 % Si
Oxygen 37.70 % O
Empirical Formula:
Mn2+2.25Ca0.75Si3O9
Locality:
F
Physical Properties:
Cleavage:
[100] Perfect, [110] Good, [110] Good
Color:
brown red, light pink, or pink.
Density:
3.32 - 3.43, Average = 3.37
Diaphaniety:
Transparent to Translucent
Hardness:
5.5-6.5
Luminescence:
Fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...