Transmissible in the range from the vacuum ultraviolet region of 105.0mm to the ingrared region of 8, and it is used as a prism or window. In the ultraviolet region, it is the material with the best transmission. It is also used as an X-rays analyzer crystal.

Calsium Fluoride(CaF2) * Lithium Fluoride(LiF) * Magnesium Fluoride(MgF2) * Barium Fluoride(BaF2) Sodium Chloride(NaCl) * Potassium Bromide(KBr) * Potassium Chloride(KCl) * Cesium Iodide(CsI) Table of Optical Crystal Characteristics 1 * Table of Optical Crystal Characteristics 2 Table of dispersion coefficents and Refraction table and ransmission range