3 ms·
Yes, "rare" in this context doesn't mean the materials are rare geographically, but rather that they occur in very low concentrations which requires processing
by jasonwatkinspdx 3y ago
Yes, "rare" in this context doesn't mean the materials are rare geographically, but rather that they occur in very low concentrations which requires processing large volumes of ore. This is environmentally very destructive so in recent decades the world has been happy to let places like China do it.
- wnevets 3y ago> but rather that they occur in very low concentrations which requires processing large volumes of ore. IIRC those concentrations are similar to copper and other metals