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The rare-earth elements (REE), also called the rare-earth metals or rare earths, and sometimes the lanthanides or lanthanoids (although scandium and yttrium, which do not belong to this series, are usually included as rare earths), [ 1 ] are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals.
Rare-earth mineral. Rare-earth ore, shown with a United States penny for size comparison. A rare-earth mineral contains one or more rare-earth elements as major metal constituents. Rare-earth minerals are usually found in association with alkaline to peralkaline igneous complexes in pegmatites. This would be associated with alkaline magmas or ...
It is the only rare-earth mining and processing facility in the United States. [1] [2] As of 2022, work is ongoing to restore processing capabilities for domestic light rare-earth elements (LREEs) and work has been funded by the United States Department of Defense to restore processing capabilities for heavy rare-earth metals (HREEs) to ...
June 11, 2024 at 8:22 AM. Nelson Ching. Mining firm Rare Earths Norway says it has discovered Europe’s largest proven deposit of highly prized rare earth elements, potentially reflecting a ...
An overview of one of the regolith-hosted rare earth element deposits (a type of Rare Earth Element mine) in South China. Regolith-hosted rare earth element deposits (also known as ion-adsorption deposits) are rare-earth element (REE) ores in decomposed rocks that are formed by intense weathering of REE-rich parental rocks (e.g. granite, tuff etc.) in subtropical areas.
Neodymium is typically 10–18% of the rare-earth content of commercial deposits of the light rare-earth-element minerals bastnäsite and monazite. [13] With neodymium compounds being the most strongly colored for the trivalent lanthanides, it can occasionally dominate the coloration of rare-earth minerals when competing chromophores are absent.
See: Rare earth industry in China.) Although current evidence suggests rare-earth elements are less abundant on the Moon than on Earth, [59] NASA views the mining of rare-earth minerals as a viable lunar resource [60] because they exhibit a wide range of industrially important optical, electrical, magnetic and catalytic properties. [1]
The rare earth industry in China is a large industry. Rare earths are a group of elements on the periodic table with similar properties. Rare earth metals are used to manufacture technologies including electric vehicles (EVs), wind turbines, consumer electronics and other clean energy technologies. Rare earth elements are also important to national governments because they are used in the ...