General Information:
Chemical Formula:
Ca2(Ce,La)3(CO3)5F3
Composition:
(Molecular Weight = 856.64 gm)
Calcium 9.36 % Ca
Lanthanum 12.16 % La
Cerium 36.80 % Ce
Carbon 7.01 % C
Oxygen 28.02 % O
Fluorine 6.65 % F
Empirical Formula:
Ca2Ce2.25La0.75(CO3)5F3
IMA Status:
Approved IMA 1987
Physical Properties:
Color:
yellow or brown.
Diaphaniety:
Transparent to Translucent
Hardness:
4.5 - Between Fluorite and Apatite
More details...