CaF2 (calcium fluoride)

Calcium fluoride (CaF₂) is an inorganic compound composed of calcium and fluorine atoms. It appears as a transparent, crystalline solid that is commonly found in nature as the mineral fluorite. CaF₂ is known for its high transparency to ultraviolet light and is used in optical applications such as lenses and spectrometers. It is also used in the manufacturing of certain types of toothpaste, in welding, and as a flux in metallurgy. Its stable chemical nature and optical properties make calcium fluoride valuable in science and industry.