General Information:
Chemical Formula:
Ca6MnBe4(SiO4)2(Si2O7)2(OH)2
Composition:
(Molecular Weight = 885.97 gm)
Calcium 27.14 % Ca
Manganese 6.20 % Mn
Beryllium 4.07 % Be
Silicon 19.02 % Si
Hydrogen 0.23 % H
Oxygen 43.34 % O
Empirical Formula:
Ca6Mn2+Be4(SiO4)2(Si2O7)2(OH)2
Environment:
Occurs with garnet and rhodonite.
Locality:
Harstig mine, Pajsberg, near Persber, Vermland, Switzerland.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
None
Color:
colorless or white.
Density:
3.16
Diaphaniety:
Translucent
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
5.5 - Knife Blade
Luster:
Vitreous (Glassy)
Streak:
white
More details...