General Information:
Chemical Formula:
Ca3(Y,Ce)2(Ti,Al,Fe3+)B4Si4O22
Composition:
(Molecular Weight = 873.63 gm)
Calcium 13.76 % Ca
Cerium 8.02 % Ce
Yttrium 15.26 % Y
Titanium 3.29 % Ti
Aluminum 0.93 % Al
Iron 0.64 % Fe
Silicon 12.86 % Si
Boron 4.95 % B
Oxygen 40.29 % O
Empirical Formula:
Ca3Y1.5Ce0.5Ti0.6Al0.3Fe3+0.1B4Si4O22
IMA Status:
Approved IMA 1987, (Dana # Added)
Physical Properties:
Color:
brown.
Density:
3.73 - 3.86, Average = 3.79
Diaphaniety:
Translucent
Hardness:
6 - Orthoclase
Luster:
Vitreous (Glassy)
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