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A comment on US Department of Energy: Fusion Ignition Achieved. Parent comment

Re:US Department of Energy: Fusion Ignition Achieved by zardo on Wednesday December 14, 2022 @02:52PM (#33989238)
> And, "rare-earths" are not in fact rare.

It's not a lie but is an unfortunate synonym. They are rare in the sense that they are rarified, spread thin everywhere not concentrated in ores.

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Re:US Department of Energy: Fusion Ignition Achieved by moloch-hai on Wednesday December 14, 2022 @06:12PM (#33992183)
They are in ores, but are mixed with other lanthanides that they are expensive to separate from. Two of them, yttrium and scandium, are not lanthanides and are relatively easy to separate out.

A new powerfully magnetic iron-nickel allotrope may eliminate much of the market for several of them.

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