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Key terms: rare earth yttrium mineral oxide cerium found ores china sources supply separation lanthanides rare earth elements contain similar crust ceria abundant monazite lake further yielded gadolinite deposits lecoq discovery sweden yellow discovered relatively brazil obtained xenotime technique terbium technology isolated phosphor determine difficult dysprosium significant lanthanoids south africa rare earth metals heavy lanthanides cerium earths yttrium earths chemical properties fractional crystallization Search external links cited by footnotes on Wikipedia page Rare earth element: |
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