Calcium fluoride

Calcium fluoride is a chemical compound made of calcium and fluorine. It naturally occurs as a mineral called fluorite or fluorspar. It is commonly used in the production of optical lenses, especially in microscopes and telescopes, because of its ability to transmit light with minimal distortion. In dentistry, it's also added to toothpaste to help prevent cavities by strengthening tooth enamel. Additionally, calcium fluoride is used in the manufacturing of certain metals and in the fluorescent lighting industry. Its stability and unique optical properties make it valuable in various industrial and scientific applications.