What is Rare Earth

what is rare earth chemicals? this was something new in that this chemical material is only found in few places in the world namely China, USA, and Australia.

the rare earths are 17 chemically similar elementsn including neodymium and dysprosium. The oxides are used in the production of equipment for General Dyaniamics Corp's M1A2 Abrams tankand Aegis SPY-1 radar made by Lockheed Martin Corp

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