General Information:
Chemical Formula:
Ca2[Be(OH)2Al2Si4O13]·<2·5(H2O)
Composition:
(Molecular Weight = 540.72 gm)
Calcium 14.82 % Ca
Beryllium 1.67 % Be
Aluminum 9.98 % Al
Silicon 20.78 % Si
Hydrogen 1.27 % H
Oxygen 51.49 % O
Empirical Formula:
Ca2Be(OH)2Al2(Si4O13)·2.4(H2O)
IMA Status:
Approved IMA 1969
Physical Properties:
Cleavage:
[110] Perfect
Color:
yellow, yellowish white, or white.
Density:
2.02
Diaphaniety:
Transparent to Translucent
Luster:
Vitreous (Glassy)
Streak:
white
More details...