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Atomic Positional Parameters
Ti 2a 0.0000 0.0000 0.0000
O  4f 0.3048 0.3048 0.0000

Reference
Gonschorek W and Feld R (1982) Zeitschrift fuer Kristallographie,161, 1

Mineral Chemistry
Rutile, anatase and brookite are polymorphs of TiO₂, and have Ti⁴⁺ cations coordinated by six O^2- anions. In rutile, these TiO₆ octahedra are linked by edges to form chains parallel to the z-axis.

Rutile structured minerals include pyrolusite (MnO₂), cassiterite (SnO₂) and plattnerite (PbO₂).

Rutile, the high-temperature polymorph of TiO₂, is formed in igneous and metamorphic rocks. It may be found in eclogites, in pegmatites, and in quartz and apatite veins. Fine needles of rutile may be present in clays and shales.

The CHIME figure shows titanium atoms coloured grey, and oxygens coloured red. The unit cell is outlined.