• SEI Resources » Critical Materials » Rare Earth Elements

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    This fact sheet describes the Critical Materials Institute (CMI), and also defines critical and near-critical materials.
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    This report examines the role of rare earth metals and other materials in the clean energy economy. It was prepared by the U.S. Department of Energy (DOE) based on data collected and research performed during 2010. Its main conclusions...
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    For an up-to-date review of the rare earth elements, which is more technical, see the 2012 articles by Karl A. Gschneidner, Jr. and Vitalij K. Pecharsky in the Encyclopedia Britannica. The narrative regarding the entire rare earth group as...
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    What are rare earths? To see and read an elementary primer, check Rare Earths -- The Fraternal Fifteen. The 46-page pamphlet describes this family of chemical elements that have similar chemical properties and different physical...
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