Optical glass /Fiber /Coating material Calcium Fluoride CaF2

Physical properties: white or colorless crystalline powder; melting point 1423 ° C, relative density 3.18;

Chemical properties: color, mostly yellow, green, blue, purple or white, and roses and other colors. Luminous when heated.

Uses: organic chemistry reaction for dehydration or dehydrogenation catalysts. As flux in the steel industry. The production of ceramic, enamel, etc. used as component. Welding welding components and glass, the manufacture of glass fiber. Metallurgical flux. Nuclear reactor with base material. Optical crystal and lens. The main optical glass material. Optical fiber, medicine and other, carving crafts, manufacture organic, inorganic fluorine compounds. Can also be used in electronics, instrumentation, optical instrument manufacturing. Metallurgical flux. Very pure fluorspar used to produce special lenses.