The rare earth elements are not ‘earths’ but metals. Nor are they rare. They are expensive because they are difficult to extract. Thorium isn’t a rare earth. It is generally found as a by-product of the processing of Monazite […]
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The rare earth elements are not ‘earths’ but metals. Nor are they rare. They are expensive because they are difficult to extract. Thorium isn’t a rare earth. It is generally found as a by-product of the processing of Monazite […]