General Information:
Chemical Formula:
(La,Ce)2(CO3)3·8(H2O)
Composition:
(Molecular Weight = 602.57 gm)
Lanthanum 34.58 % La
Cerium 11.63 % Ce
Hydrogen 2.68 % H
Carbon 5.98 % C
Oxygen 45.14 % O
Empirical Formula:
La1.5Ce0.5CO33·8(H2O)
IMA Status:
Approved IMA 1987
Physical Properties:
Cleavage:
[???] Perfect
Color:
colorless, yellowish, yellowish white, white, or pink.
Density:
2.61
Diaphaniety:
Transparent
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).,
Hardness:
3 - Calcite
Luminescence:
Non-fluorescent.
Luster:
Pearly
Streak:
white
More details...