Calcium fluoride (CaF 2), commonly known as fluorite, is a mineral used in various industrial applications, including cement production. In cement, it acts as a mineralizer and helps in lowering the clinkering temperature, thereby enhancing the energy efficiency of the manufacturing process. The use of calcium fluoride in cement is particularly beneficial in severe environmental conditions, as it contributes to the formation of a stable and robust cement matrix capable of withstanding chemical attacks, thermal cycles, and physical wear. It is also used in specialty cements where chemical resistance, particularly to acidic environments, is required.