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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.
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 with carbonatite intrusives. Perovskite mineral phases are common hosts to rare-earth ...
Allanite (also called orthite) is a sorosilicate group of minerals within the broader epidote group that contain a significant amount of rare-earth elements. The mineral occurs mainly in metamorphosed clay-rich sediments and felsic igneous rocks. It has the general formula A 2 M 3 Si 3 O 12 [OH], where the A sites can contain large cations such ...
Rare earths are a group of 17 metals that have been deemed critical by the U.S. Geological Survey for multiple sectors in the U.S.
Mckelveyite-(Y) is a hydrated sodium, barium, yttrium, and uranium–containing carbonate mineral, with the chemical formula Ba 3 Na(Ca,U)Y(CO 3) 6 ·3H 2 O. Occurrence [ edit ]
China was the EU’s largest partner for imports of rare earth elements in 2022, accounting for 40% of overall imports based on weight. Looking ahead, Rare Earths Norway said that exploration work ...
The geology of Wyoming includes some of the oldest Archean rocks in North America, overlain by thick marine and terrestrial sediments formed during the Paleozoic, Mesozoic and Cenozoic, including oil, gas and coal deposits. Throughout its geologic history, Wyoming has been uplifted several times during the formation of the Rocky Mountains ...
July 2, 1973. The Ferris-Haggerty Mine Site was one of the richest components of the Grand Encampment Mining District in Carbon County, Wyoming. The site was first exploited by Ed Haggerty, a prospector from Whitehaven, England, in 1897 when he established the Rudefeha Mine that would later be known as the Ferris-Haggerty Mine on a rich deposit ...
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