General Information:
Chemical Formula:
Be2(AsO4)(OH)·4(H2O)
Composition:
(Molecular Weight = 246.01 gm)
Beryllium 7.33 % Be
Arsenic 30.45 % As
Hydrogen 3.69 % H
Oxygen 58.53 % O
Empirical Formula:
Be2(AsO4)(OH)·4(H2O)
Environment:
Oxidation zone of a polymetallic deposit.
IMA Status:
Approved IMA 1962
Locality:
Kazakhstan.
Name Origin:
Named for the composition (Be, Arsenic).
Physical Properties:
Color:
white.
Density:
1.8 - 2, Average = 1.9
Diaphaniety:
Translucent
Habits:
Encrustations - Forms crust-like aggregates on matrix., Fibrous - Crystals made up of fibers., Striated - Parallel lines on crystal surface or cleavage face.
Streak:
white
More details...