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Supertopics:
Rare Earth Elements (rare earth metals)

Rare Earth Elements Miscellany

Subtopics:
webNicola JonesYale e3602013-11-18
webUS Department of Energy2010-12-01
webDavid SirotaAlterNet2010-06-19
webJames RisenNew York Times2010-06-13
webUS Geological Survey (USGS)2002-11-20