Mineral phase
- IMA name
- Yttriaite
- CAS number
- 1314-36-9
- Class
- non-silicate mineral
- Compound type
- oxide
- Formula
- $Y_2O_3$
- Chemical formula
- Y2O3
- Elemental formula
- (Y3+)2 (O2-)3
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $Y_{2}O_{3}$ Mass fraction (%) 100.0
Strunz
- Class
- oxides - hydroxides - arsenites (04)
- Division
- metal:oxygen = 2:3, 3:5, and similar (04.C)
- Family
- with large and medium-sized cations (04.CC)
- Code
- 04.CC.
Dana
- Major class
- oxides and hydroxides (III)
- Class
- simple oxides (04)
- Type
- with a cation charge of 3+ (A+++2O3) (04.03)
- Group
- -Avicennite- group (04.03.08)
- Code
- 04.03.08.00
- Phase type
- crystalline
- Crystal system
- isometric (cubic)
- Crystal class
- diploidal
- Crystal class symbol
- m-3 (Th)
- Crystal spacegroup
- Ia-3
- Molar mass
- 225.81 $g/mol$
- Density
- 5.01 (calc.: 5.073) $g/cm^3$
- State NTP
- solid
- Refringence type
- isotropic
- Refraction index $n_{\alpha}$
- 1.931
- Pure color
- white
- Color
- white
- Diaphaneity
- transparent
- Luster
- adamantine