|Formula CaF2] FLUORITE
|Alkaline earth metal
Fluorite, also known as fluorite, is a common mineral. Its chemical formula indicates that it is composed of calcium and fluorine. Fluorite usually occurs as cubes or aggregates of cubes, but it can also grow into spheres called spherulites. The color of fluorite can vary greatly, from purple, blue, green, yellow, orange, pink to colorless, and even multiple colors in a single specimen, which is due to various impurities. Fluorite is classified as a hardness 4 mineral on the Mohs scale, meaning it can be scratched by a knife. It is used in various industrial applications, including in the production of hydrofluoric acid, in metallurgy, and as a flux in steelmaking.