General Information:
Chemical Formula:
Ca3Be2Si3O10(OH)2
Composition:
(Molecular Weight = 416.52 gm)
Calcium 28.87 % Ca
Beryllium 4.33 % Be
Silicon 20.23 % Si
Hydrogen 0.48 % H
Oxygen 46.09 % O
Empirical Formula:
Ca3Be2(Si3O10)(OH)2
Environment:
In fluorite veins in the Dugdinsk Massif, Tuva, Siberia, Russia.
Locality:
TL: Langban, Varmland, Sweden.
Name Origin:
Named for Gregori Aminoff (1993-1947), Swedish Mineralogist and crystallographer.
Physical Properties:
Cleavage:
[001] Indistinct
Color:
colorless or light yellow.
Density:
2.94
Diaphaniety:
Transparent
Hardness:
5.5 - Knife Blade
Luster:
Vitreous (Glassy)
Streak:
white
More details...