Cerite is a complex mineral containing
cerium, formula
Ce9Fe(
SiO4)
6(
SiO3)(
OH)
4 from
Sweden. Another formula given for cerite is (
Ce,
Ca)
9(
Mg,
Fe)
Si7(
O,
OH,
F)
28.
There are also various varieties of cerite in which some of the cerium is replaced by other elements, e.g. lanthanum dominated cerite and yttrium cerite.
References