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  2. Rare-earth element - Wikipedia

    en.wikipedia.org/wiki/Rare-earth_element

    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. Compounds containing rare ...

  3. Round Top Mountain - Wikipedia

    en.wikipedia.org/wiki/Round_Top_Mountain

    Round Top is known for containing rare-earth elements, including the largest deposit of heavy rare-earth elements in the United States, estimated at over 1 billion tons. [5] The rare-earth elements contained in the mountain can be used to build energy and defense applications as well as electronic devices, lasers, in oil and gas drilling, water ...

  4. Regolith-hosted rare earth element deposits - Wikipedia

    en.wikipedia.org/wiki/Regolith-hosted_rare_earth...

    An overview of one of the regolith-hosted rare earth element deposits (a type of Rare Earth Element mine) in South China [1]. 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. [2]

  5. Mountain Pass Rare Earth Mine - Wikipedia

    en.wikipedia.org/wiki/Mountain_Pass_rare_earth_mine

    The Mountain Pass Rare Earth Mine and Processing Facility, owned by MP Materials, is an open-pit mine of rare-earth elements on the south flank of the Clark Mountain Range in California, 53 miles (85 km) southwest of Las Vegas, Nevada. In 2020 the mine supplied 15.8% of the world's rare-earth production.

  6. Lanthanide - Wikipedia

    en.wikipedia.org/wiki/Lanthanide

    The term rare-earth element or rare-earth metal is often used to include the stable group 3 elements Sc, Y, and Lu in addition to the 4f elements. [8] All lanthanide elements form trivalent cations, Ln 3+, whose chemistry is largely determined by the ionic radius, which decreases steadily from lanthanum (La) to lutetium (Lu).

  7. Molycorp Heavy Rare Earths Project Up and Running

    www.aol.com/2012/08/27/molycorp-heavy-rare...

    U.S. rare earth minerals miner Molycorp Inc. (NYSE: MCP) announced after markets closed today that it had begun production at its Project Phoenix concentrate facilities in Mountain Pass ...

  8. Yttrium - Wikipedia

    en.wikipedia.org/wiki/Yttrium

    A slight distinction is recognized between the light (LREE) and the heavy rare-earth elements (HREE), but the distinction is not perfect. Yttrium is concentrated in the HREE group due to its ion size, though it has a lower atomic mass. [56] [57] A piece of yttrium. Yttrium is difficult to separate from other rare-earth elements.

  9. Why rare earth permanent magnets are vital to the global ...

    www.aol.com/news/why-rare-earth-permanent...

    Analysts expect worldwide demand for rare earth permanent magnets to double within a decade.