Calcium Fluorite Lumps Minerals. Calcium Fluoride (Fluorite) Mineral: Definition: Calcium fluoride, also known as fluorite, is a mineral composed primarily of calcium and fluorine. It crystallizes in cubic or octahedral forms and is commonly found in various geological environments.

Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels. The purest grades of fluorite are a source of fluoride for hydrofluoric acid manufacture, which is the intermediate source of most fluorine-containing fine chemicals.

It is used in opalescent glass, in iron and steel enamelware, in the production of hydrofluoric acid, in the refining of lead and antimony, and in the manufacture of high-octane fuels (as a catalyst)