General Information:
Chemical Formula:
Na(Mn++,Ca)2Si3O8(OH)
Composition:
(Molecular Weight = 354.69 gm)
Sodium 6.48 % Na
Calcium 5.65 % Ca
Manganese 23.23 % Mn
Silicon 23.75 % Si
Hydrogen 0.28 % H
Oxygen 40.60 % O
Empirical Formula:
NaMn2+1.5Ca0.5Si3O8(OH)
Physical Properties:
Cleavage:
[???] Perfect
Color:
light brown, light pink, or orange red.
Density:
3.41
Diaphaniety:
Transparent to Translucent
Hardness:
4-5.5
Luster:
Vitreous - Pearly
Streak:
white
More details...