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by Turing_Machine
1099 days ago
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It's not just rare earths... lots of minerals (most glamorously, gold) are this way. There are mines that are profitable to operate if the mineral is selling for $x per kilogram (or gram, or tonne), but are not profitable to operate if it's selling for $x-1 per unit (or any other figure less than x). Shutting mines down and (sometimes) starting them back up based on economic reasons has been going on for centuries. |
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