Brookite
= Brookite
{wiki=Brookite}
Brookite is a mineral that is classified as a titanium oxide, with the chemical formula \\( \\text\{TiO\}_2 \\). It is one of the three main polymorphs of titanium dioxide, the other two being rutile and anatase. Brookite typically forms in a tetragonal crystal system and is characterized by its unusual elongated crystal shape and its perfect cleavage.