General Information:
Chemical Formula:
CaMn2Be3(SiO4)3
Composition:
(Molecular Weight = 453.24 gm)
Calcium 8.84 % Ca
Manganese 24.24 % Mn
Beryllium 5.97 % Be
Silicon 18.59 % Si
Oxygen 42.36 % O
Empirical Formula:
CaMn2+2Be3(SiO4)3
Locality:
Vermland, Sweden.
Physical Properties:
Cleavage:
[001] Good
Color:
colorless, yellowish red, or pink.
Density:
3.474
Diaphaniety:
Transparent to translucent
Habits:
Pseudo Hexagonal - Crystals show a hexagonal outline., Tabular - Form dimensions are thin in one direction., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Vitreous (Glassy)
Streak:
white
More details...