Rare Earth Elements: What They Are and Why They Matter in Mining and Metallurgy
Rare earth elements (REE) are a group of 17 chemical elements that include the fifteen lanthanides (La–Lu), along with scandium (Sc) and yttrium (Y). Despite their name, they are not particularly rare in Earth’s crust; however, they are rarely found in concentrations that are economically viable to mine, making their extraction and processing challenging. These […]
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