Calcium fluoride is the inorganic compound with the formula CaF2. It is a white insoluble solid. It occurs as the mineral fluorite (also called fluorspar), which is often deeply coloured owing to impurities.
C 1424 (OTTO) Calcium fluoride, 95% Cas 7789-75-5 - used to manufacture optical components such as windows and lenses, used in thermal imaging systems, spectroscopy, and excimer lasers