What the hell are rare earth elements? | Hacker News

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		What the hell are rare earth elements? (thehustle.co)
		1 point by paulpauper 7 months ago \| hide \| past \| favorite \| 1 comment

gnabgib 7 months ago [–]

Small discussion yesterday (41 points, 7 comments) https://news.ycombinator.com/item?id=43953272

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