General Information:
Chemical Formula:
Na3(Nd,La)4(Ti,Nb)2(SiO4)2(CO3)3O4(OH)·2(H2O)
Composition:
(Molecular Weight = 1,240.10 gm)
Sodium 5.56 % Na
Lanthanum 11.20 % La
Titanium 5.79 % Ti
Niobium 3.75 % Nb
Silicon 4.53 % Si
Hydrogen 0.41 % H
Carbon 2.91 % C
Neodymium 34.89 % Nd
Oxygen 30.96 % O
Empirical Formula:
Na3Nd3LaTi1.5Nb0.5(SiO4)2(CO3)3O4(OH)·2(H2O)
IMA Status:
Approved IMA 1987
Physical Properties:
Cleavage:
[???] Good
Color:
yellow or greenish yellow.
Density:
3.7
Hardness:
3 - Calcite
Luster:
Vitreous (Glassy)
Streak:
white
More details...