Calcium Fluoride

Calcium Fluoride is an inorganic compound that can be found in nature as fluorite, also known as fluorspar. It is sometimes used in the preparation of HF, hydrogen fluoride.

Glass, Optical
As an optical glass material, calcium fluoride is resistant to thermal shock, insoluble in water, and has a low refractive index. These qualities make it useful anti-reflection applications. Additionally, calcium fluoride is approximately twice as hard as barium fluoride but less expensive. It can be found used in the production of optical: lenses, (w/ high purity) special lenses, crystals, fibers, and other optical instruments.

Additional Notes:
*Luminous when heated!