Acidic mine water is contaminating many streams in West Virginia’s coal country. Researchers are trying to extract valuable rare-earth elements from that waste to help recover some of the costs of treating it. https://cen.acs.org/materials/inorgan... ↓↓More info and references below↓↓

This video was corrected on July 12, 2018. An earlier version of the video displayed the incorrect formula for manganese hydroxide, showing Mg2(OH)3 instead of Mn(OH)2. We regret the error.

Read more:

A whole new world for rare earths | C&EN
https://cen.acs.org/articles/95/i34/w...

Managing a dearth of rare earths | C&EN
https://cen.acs.org/articles/90/i14/M...

Securing the supply of rare earths | C&EN
https://cen.acs.org/articles/88/i35/S...

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