Fluorite is also called fluorite. A common mineral in nature, which can be produced together with other minerals, is produced in many parts of the world, and there are five effective varieties. Equiaxed crystal system, the main component is calcium fluoride (CaF? ) 。
Crystals are octahedrons and cubes. The crystal is glassy, colorful and fragile, with Mohs hardness of 4 and melting point of 1360℃, which has the property of perfect cleavage. Some samples can emit light under the conditions of friction, heating and ultraviolet irradiation.
Main value
Fluorite is the only mineral that can extract a lot of fluorine. At the same time, it is also used as a cosolvent for steelmaking to remove impurities. This mineral is also like a camera lens made of fluorite when making glass and enamel. Because of its extremely low dispersion, the lens polished with it has less chromatic aberration than the lens made of ordinary glass. ?
Fluorite is called "the brightest gem in the world" because of its bright colors and flawless crystals. However, due to its low hardness, it can't be used as jewelry. However, fluorite is relatively soft, so it can be used to carve ornaments relatively easily when the crystal is large enough.
This mineral is very popular among ore collectors. Especially some specimens with good appearance, the price can be very high.