I always wondered why Lynas was mining Lanthanum, Cerium as well...

I always wondered why Lynas was mining Lanthanum, Cerium as well as Neodymium .. now makes sense in light of what Toyota are doing .. I wonder if the two are related

Toyota Readies Cheaper Electric Motor by Halving Rare Earth Use​

Asia’s biggest carmaker has developed a magnet for the motors that as much as halves the use of a rare earth called neodymium and eliminates the use of others called terbium and dysprosium, the company
said at a briefing in Tokyo on Tuesday. In their place, Toyota will use the rare earths lanthanum and cerium, which cost 20 times less than neodymium. The carmaker plans to ask suppliers to manufacture the magnets.​

https://www.bloomberg.com/news/arti...aper-electric-motor-by-halving-rare-earth-use