Exporting rare earth oral and dioxides into United StatesZ ELEMENT SYMBOL USE21 Scandium Sc Aerospace framework, high-intensity street lamps, high performance equipment39 Yttrium Y TV sets, cancer treatment drugs, enhances strength of alloys57 Lanthanum La Camera lenses, battery-electrodes, hydrogen storage58 Cerium Ce Catalytic converters, colored glass, steel production59 Praseodymium Pr Super-strong magnets, welding goggles, lasers60 Neodymium Nd Extremely strong permanent magnets, microphones, electric motors of hybrid automobiles, laser61 Promethium Pm Not usually found in Nature62 Samarium Sm Cancer treatment, nuclear reactor control rods, X-ray lasers63 Europium Eu Color TV screens, fluorescent glass, genetic screening tests64 Gadolinium Gd Shielding in nuclear reactors, nuclear marine propulsion, increases durability of alloys65 Terbium Tb TV sets, fuel cells, sonar systems66 Dysprosium Dy Commercial lighting, hard disk devices, transducers67 Holmium Ho Lasers, glass coloring, High-strength magnets68 Erbium Er Glass colorant, signal amplification for fiber optic cables, metallurgical uses69 Thulium Tm High efficiency lasers, portable x-ray machines, high temperature superconductor70 Ytterbium Yb Improves stainless steel, lasers, ground monitoring devices71 Lutetium Lu Refining petroleum, LED light bulbs, integrated circuit manufacturing