Constituent
- Name
- ilmenite
- IMA name
- Ilmenite
- Class
- non-silicate mineral
- Compound type
- oxide-hydroxide
- Relevance
- main - major
- Arrangement
- heterogeneous in multi-phases
- Mass fraction
- 0.001
- Abundance comments
- 4% of ilmenite in the fraction 90-150 microns of 74241 (Heiken and McKay, 1974)
- Formula
- $Fe^{2+}TiO_3$
- Chemical formula
- (Fe2+)Ti03
- Elemental formula
- (Fe2+) Ti O3
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $TiO_{2}$ $FeO$ Mass fraction (%) 52.65 47.35
Strunz
- Class
- oxides - hydroxides - arsenites (04)
- Division
- metal:oxygen = 2:3, 3:5, and similar (04.C)
- Family
- with medium-sized cations (04.CB)
- Code
- 04.CB.05
Dana
- Major class
- oxides and hydroxides (III)
- Class
- simple oxides (04)
- Type
- with a cation charge of 3+ (A+++2O3) (04.03)
- Group
- Ilmenite group (04.03.05)
- Code
- 04.03.05.01
- Phase type
- crystalline
- Crystal system
- trigonal
- Crystal class
- rhombohedral
- Crystal class symbol
- -3 (S6)
- Crystal spacegroup
- R-3
- Molar mass
- 151.73 $g/mol$
- Density
- 4.72 $g/cm^3$
- Refringence type
- uniaxial
- Refringence sign
- negative
- Refraction index $n_{\alpha}$
- 2.4
- Color
- iron black, black
- Diaphaneity
- opaque
- Luster
- submetallic