Lithium Fluoride (LiF) crystals are known for their high transmission in the UV and infrared ranges (120 nm to 7 µm) and low dispersion, making them ideal for optical windows, lenses, prisms, and beam-splitters. With a cubic crystal structure, high melting point (~1,100°C), and chemical stability, LiF is widely used in spectroscopy, laser systems, and radiation detection. Its excellent performance in harsh environments also makes it valuable for space exploration, nuclear research, and military applications.