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  2. Titanium dioxide - Wikipedia

    en.wikipedia.org/wiki/Titanium_dioxide

    Titanium dioxide, also known as titanium(IV) oxide or titania / t aɪ ˈ t eɪ n i ə /, is the inorganic compound derived from titanium with the chemical formula TiO 2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. [4] It is a white solid that is insoluble in water, although mineral forms can appear ...

  3. Anatase - Wikipedia

    en.wikipedia.org/wiki/Anatase

    Anatase is a metastable mineral form of titanium dioxide (TiO 2) with a tetragonal crystal structure. Although colorless or white when pure, anatase in nature is usually a black solid due to impurities.

  4. Rutile - Wikipedia

    en.wikipedia.org/wiki/Rutile

    Rutile is an oxide mineral composed of titanium dioxide (TiO 2), the most common natural form of TiO 2. Rarer polymorphs of TiO 2 are known, including anatase, akaogiite, and brookite. Rutile has one of the highest refractive indices at visible wavelengths of any known crystal and also exhibits a particularly large birefringence and high ...

  5. Brookite - Wikipedia

    en.wikipedia.org/wiki/Brookite

    Brookite is the orthorhombic variant of titanium dioxide (TiO 2), which occurs in four known natural polymorphic forms (minerals with the same composition but different structure). The other three of these forms are akaogiite ( monoclinic ), anatase ( tetragonal ) and rutile ( tetragonal ).

  6. Ilmenite - Wikipedia

    en.wikipedia.org/wiki/Ilmenite

    Ilmenite is a titanium-iron oxide mineral with the idealized formula FeTiO 3.It is a weakly magnetic black or steel-gray solid. Ilmenite is the most important ore of titanium [5] and the main source of titanium dioxide, which is used in paints, printing inks, [6] fabrics, plastics, paper, sunscreen, food and cosmetics.

  7. Titanium compounds - Wikipedia

    en.wikipedia.org/wiki/Titanium_compounds

    Titanium dioxide powder. The most important oxide is TiO 2, which exists in three important polymorphs; anatase, brookite, and rutile. All three are white diamagnetic solids, although mineral samples can appear dark (see rutile). They adopt polymeric structures in which Ti is surrounded by six oxide ligands that link to other Ti centers. [5]

  8. Titanium - Wikipedia

    en.wikipedia.org/wiki/Titanium

    Common titanium-containing minerals are anatase, brookite, ilmenite, perovskite, rutile, and titanite (sphene). [27] Akaogiite is an extremely rare mineral consisting of titanium dioxide. Of these minerals, only rutile and ilmenite have economic importance, yet even they are difficult to find in high concentrations.

  9. Akaogiite - Wikipedia

    en.wikipedia.org/wiki/Akaogiite

    Akaogiite (IMA symbol Aka [1]) is an exceedingly rare mineral, one of the natural forms of titanium dioxide (TiO 2). It is a high-pressure polymorph of TiO 2, along with anatase, brookite and another high-pressure phase called "TiO 2 II". [2] [3] [4] Rutile is the stable polymorph of TiO 2, most commonly found at standard temperatures and ...