Anatase is a mineral form of titanium dioxide (TiO2) that is commonly found in nature. It typically appears as shiny, dark blue or black crystals and is known for its high refractive index, which gives it a brilliant luster. Anatase is often used in various applications, including pigments, photocatalysts, and in the production of titanium metal. This mineral is one of three main polymorphs of titanium dioxide, the others being Rutile and Brookite. Anatase is less stable than rutile at high temperatures but is more commonly found in sedimentary rocks and soils. Its unique properties make it valuable in industries such as electronics and environmental technology.