Metallurgical fluorite lump ore
Fluorite comes from the remains of volcanic magma. During the cooling process of magma, the gas-water solution separated from the magma contains many substances, mainly fluorine. During the rising process of the solution along the crack, the temperature decreases, the pressure decreases, and the fluorine ions in the gas-water solution combine with the calcium ions in the surrounding rocks to form calcium fluoride. After cooling and crystallization, fluorite is obtained.
Fluorite is also called fluorite. A common mineral in nature can coexist with many other minerals. It is produced in many parts of the world and has five effective varieties. The main component of equiaxed crystal system is calcium fluoride (CaF ₂). The crystal is octahedron and cube. The crystal is glassy, colorful and brittle, with Mohs hardness of 4 and melting point of 1360 ℃, and has the property of complete cleavage. Some samples can emit light under friction, heating, ultraviolet radiation, etc.