anatase
Anatase is a mineral form of titanium dioxide (TiO₂) that occurs naturally in the Earth's crust. It is characterized by its tetragonal crystal structure and typically appears as shiny, dark blue or black crystals. Anatase is one of three main polymorphs of titanium dioxide, the others being rutile and brookite.
Anatase is commonly found in igneous and metamorphic rocks and can also be produced synthetically. It has various applications, including use in photocatalysis, pigments, and solar cells. Its unique properties make it valuable in both industrial and environmental contexts.