Cryolite is a rare mineral primarily composed of sodium, aluminum, and fluoride. Its chemical formula is Na3AlF6, and it typically appears as a white or colorless crystalline substance. Cryolite is mainly found in Greenland and is used in the production of aluminum, as it lowers the melting point of bauxite, the primary ore of aluminum. Historically, cryolite was mined extensively for its use in aluminum smelting. Today, synthetic cryolite is often produced for industrial purposes. In addition to its role in aluminum production, cryolite has applications in the manufacture of glass and ceramics, as well as in some pesticide formulations.