Anatase

Demonstration of Anatas from Pakistan, Balochistan, Ras Koh Mts. Anatas forms a gray-black with a brownish tinge, a glassy shiny, partially translucent, longitudinally grooved crystal reaching a size of up to 9 mm, which grows on a substrate with a milky white clay mineral.

Anatase

Anatase is one of the modifications of titanium dioxide (TiO2), as well as brookite and rutile. Its name comes from the Greek anatasis - elongation, according to the fact that its crystals are elongated. It is a secondary mineral, formed by the conversion of minerals containing titanium. It occurs in alpine veins, in igneous rocks such as granites, pegmatites, syenites and diorites and in metamorphic rocks (gneisses, sediments). They form crystals in the shape of dipyramides, rarely in columnar or tabular crystals. They often form pseudomorphoses after titanite and ilmenite. The colors are blue, yellow, red, brown to black. It is also colorless.