7. Glossary

Rutile; rutile

Mineral form of TiO ₂ that remains stable from room temperature up to melting temperature (1,855°C). Its specific gravity is 4.250.

Anatase; anatase

Mineral form of TiO ₂ that irreversibly transforms into rutile in the 600-800° C temperature range. Its specific gravity is 3.994.

TiO _{2– x}  

Oxygen-substoichiometric mineral forms of TiO ₂ . They are generally obtained at high temperature and in a reducing atmosphere. TiO _{2– x} is an n-type semiconductor....