Constituent
Name
La2O3
Official name
Lanthanum(III) oxide
Family
ionic solid
Class
alkali salt
Compound type
oxide
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$La{3+}_2 \cdot O^{2-}_3$
Chemical formula
La2O3
Elemental formula
(La3+)2 (O2-)3
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$La^{3+}$ Lanthanum cation element 2 0.4 1 constituent cation main
$O^{2-}$ Oxide anion element 3 0.6 1 constituent anion main
Chemical bonds
  Bond Number
$\cdot (\cdot) La^{3+} \cdot O^{2-} \cdot$ 7
Class
alkali salts (06)
Type
simple alkali salts (06.01)
Phase name
A-La2O3 (trigonal but sometimes called hexagonal-La2O3)
Phase type
crystalline
Crystal system
trigonal
Crystal class symbol
-3m (D3d)
Crystal spacegroup
P-3m1
Comments
crystal class: Ditrigonal scalenohedral
Texture
polycrystalline
Molar mass
325.809 $g/mol$
Density
6.51 $g/cm^3$
Refringence type
uniaxial
Color
white