General Information:
Chemical Formula:
(Mn,Mg,Zn)42Si16O54(OH)40
Composition:
(Molecular Weight = 3,958.95 gm)
Magnesium 7.74 % Mg
Manganese 34.97 % Mn
Zinc 6.94 % Zn
Silicon 11.35 % Si
Hydrogen 1.02 % H
Oxygen 37.99 % O
Empirical Formula:
Mn2+25.2Mg12.6Zn4.2Si16O54(OH)40
IMA Status:
Approved IMA (Dana # Added)
Physical Properties:
Color:
colorless or pink.
Density:
3.58
Diaphaniety:
Transparent
Habits:
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Acicular - Occurs as needle-like crystals.,
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
More details...