Fluorite (Fluorite), also known as fluorspar, is a mineral, whose main component is calcium fluoride (), containing impurities, Ca often Y, and Ce and other rare earth elements instead, also contains a small amount of Fe2O3, SiO2 and trace amounts of Cl, O3, He. Natural fluorite often significantly bright colors, a lower hardness than a knife. It can be used for the preparation of hydrogen fluoride: CaF2 + H2SO4 = of CaSO4 + 2HF ↑; artificial fluorite technology is not yet mature, it is one of the materials used in optical glass manufacturing lens. Varieties can be divided into two kinds of gem grade jade level process uses fluorite divided according to process uses. Gem grade: single crystal particles and transparent, the color of fresh, low hardness, rarely used in jewelry, and used for viewing and collection. Jade grade: granular or fibrous aggregates, translucent, single color or different colors and white banded distribution. Used for carving or made craft ornaments. Divided by common color fluorite green, purple, blue and other varieties can be divided. Of green fluorite: blue-green, green, light green. More common for DRUSE. The ancient water softener green crystal is said, has not. Purple fluorite: Deep Purple, purple. Often has banded distribution. The ancient water softener amethyst, has not. Blue fluorite: blue and gray, green, blue, light blue, often surface deep, shallow center. Yellow fluorite: orange to yellow, and often has banded appears. Colorless fluorite; colorless transparent to translucent monocrystalline or druse. Lingshou Yijia Mining Co., Ltd. specializing in the production of fluorite. Welcome calls to plant advisory missions. Contact :0311 -6,750,587,518,633,901,079 URL: http://www.yijiaky.com