Rare-earth mineral
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A rare-earth mineral contains one or more rare-earth elements as major metal constituents.[1] Rare-earth minerals are usually found in association with alkaline to peralkaline igneous complexes in pegmatites. This would be associated with alkaline magmas or with carbonatite intrusives. Perovskite mineral phases are common hosts to rare-earth elements within the alkaline complexes. Mantle-derived carbonate melts are also carriers of the rare earths. Hydrothermal deposits associated with alkaline magmatism contain a variety of rare-earth minerals.
The following includes the relatively common hydrothermal rare-earth minerals and minerals that often contain significant rare-earth substitution:
- Aeschynite-(Y or Ce)
- allanite
- apatite
- bastnäsite
- britholite
- brockite
- cerite
- Dollaseite-(Ce)
- fluocerite
- fluorite
- gadolinite
- monazite
- parisite-(Ce or La)
- stillwellite
- synchysite
- titanite
- wakefieldite
- xenotime
- zircon
Further reading[edit]
- Jones, Adrian P., Francis Wall and C. Terry Williams, eds. (1996) Rare Earth Minerals: Chemistry, Origin and Ore Deposits, The Mineralogy Society Series #7, 372 pp. ISBN 978-0-412-61030-1
- China New Policy Affect Rare Earth Price
References[edit]
- ^ McGill, Ian (2000). "Rare Earth Elements". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a22_607. ISBN 978-3-527-30385-4.