Titanium does not occur free in Nature. However, when combined with other elements, it is quite abundant, occurring in small amounts in most of the volcanic, sedimentary and metamorphic rocks.
Its more important minerals are the ilmenite, the rutile, the arizonite (iron titanate), the brookite, the anatase, the leucochene (titanium dioxide), the perovskite (calcium titanate), and others. The first two have commercial importance, and can be found in deposits spread all over the world. There are important rutile and ilmenite deposits in Australia, Argentina, USA, Central Africa, Brazil, Canada, Egypt, India and Norway. The largest well-known deposits of rutile are located in Australia.