REE Rare Earth Elements Metals, Minerals, Mining, Uses. Rare earth elements play an essential role in our national defense. The military uses nightvision goggles, precisionguided weapons, communiions equipment, GPS equipment, batteries, and other defense electronics.
Uses of Rare Earth Elements. Rare earth metals and alloys that contain them are used in many devices that people use every day such as computer memory, DVDs, rechargeable batteries, cell phones, catalytic converters, magnets, fluorescent lighting and much more.