Rare earth/tech metals
https://www.cummins.com/news/2021/04/19/what-are-tech-metals-and-rare-earth-elements-and-how-are-they-used https://www.escatec.com/blog/rare-earth-elements-electronics-manufacturing Cerium is used in light bulbs, TVs and ovens. Dysprosium is mixed within alloys used in wind turbines, electric vehicles and nuclear reactors. Erbium is used in lasers and fiber optic cables. Europium is used in light bulbs, nuclear reactors and lasers. Gadolinium is used in magnets, nuclear reactors and magnetic resonance imaging (MRI). Holmium is used in magnets and nuclear reactors. Lanthanum is mixed within alloys that are used in batteries and hydrogen vehicles. Lutetium is used as a catalyst in refineries. Neodymium is used in magnets and lasers. Praseodymium is used in aircraft engines, fiber optic cables and magnets. Promethium is used in pacemakers and guided missiles. Samarium is used in microwave devices and magnets. Ter...