Constituent
- Name
- TiO2 rutile
- IMA name
- Rutile
- Class
- non-silicate mineral
- Compound type
- oxide-hydroxide
- Relevance
- main - major
- Arrangement
- single phase
- Mass fraction
- 1.0
- Formula
- $TiO_2$
- Chemical formula
- TiO2
- Elemental formula
- Ti O2
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $TiO_{2}$ Mass fraction (%) 100.0
Strunz
- Class
- oxides - hydroxides - arsenites (04)
- Division
- metal:oxygen = 1:2 and similar (04.D)
- Family
- with medium-sized cations; chains of edge-sharing octahedra (04.DB)
- Code
- 04.DB.05
Dana
- Major class
- oxides and hydroxides (III)
- Class
- simple oxides (04)
- Type
- with a cation charge of 4+ (A++++O2) (04.04)
- Group
- Rutile group (Tetragonal: P4/mnm) (04.04.01)
- Code
- 04.04.01.01
- Phase type
- crystalline
- Crystal system
- tetragonal
- Crystal class
- ditetragonal-dipyramidal
- Crystal class symbol
- 4/mmm (D4h)
- Crystal spacegroup
- P4(2)/mnm
- Texture
- polycrystalline
- Molar mass
- 79.88 $g/mol$
- Density
- 4.25 $g/cm^3$
- Refringence type
- uniaxial
- Refringence sign
- positive
- Birefringence
- 0.287 - 0.294
- Refraction index $n_{\alpha}$
- 2.605 - 2.621
- Refraction index $n_{\beta}$
- 2.899 - 2.908
- Color
- bluish, yellow, brownish yellow, blood red, brown red, violet, brown, black
- Diaphaneity
- transparent to opaque
- Luster
- adamantine