Used in the production of neodymium metal through electrolysis, which is essential for manufacturing high-strength permanent magnets. These magnets are critical components in electric motors, wind turbines, and hybrid vehicles. Also serves as a dopant in solid-state lasers for medical, industrial, and military applications. Employed in glass and ceramics to produce specialized colors and improve optical properties. Used in some types of welding goggles to filter out harmful infrared and ultraviolet radiation.