What are the different kinds of rare earth minerals and what are they used for? ()

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FirstPost World
· 3 weeks ago
What are the different kinds of rare earth minerals and what are they used for?

Despite the name, most REEs are not particularly rare. They were called "rare-earth elements" because, when they were discovered in the 18th and 19th centuries, they were found in minerals called "earths"—a term used then for substances that didn’t break down further with heat

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