General Information:
Chemical Formula:
(Mg,Mn)2ZnSiO4(OH)2
Composition:
(Molecular Weight = 255.41 gm)
Magnesium 14.27 % Mg
Manganese 10.75 % Mn
Zinc 25.60 % Zn
Silicon 11.00 % Si
Hydrogen 0.79 % H
Oxygen 37.58 % O
Empirical Formula:
Mg1.5Mn2+0.5Zn(SiO4)(OH)2
IMA Status:
Approved IMA 1976
Physical Properties:
Cleavage:
[010] Good
Color:
white or light pink.
Density:
3.68
Diaphaniety:
Translucent to Opaque
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Vitreous - Adamantine
Streak:
white
More details...