Aminoffite

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
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