The REO at Olympic Dam are not recovered in current mining operations and finish up in the tailings storage facility at the mine site.
About 10 250 tonnes of scandium, mostly in the Subeconomic and Inferred categories was reported in 2012.
SOFCs are expected to play a significant role in the developing battery powered electric transportation industry (cars, trucks, trains, etc), as well as in stationary applications such as electricity generation in the home or as a substitute for coal fired power plants .
The resources of REEs are usually reported as rare earth oxides (REO).
Kingsnorth grouped lanthanum, cerium, praseodymium and neodymium as light REEs, or Ceric, samarium, europium and gadolinium as medium REEs and terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium plus yttrium as heavy REEs, or Yttric.
The group of REEs is variously, and inconsistently, reported by companies as light REEs consisting of lanthanum, cerium, praseodymium, neodymium and, sometimes, samarium.
heavy REEs may start with samarium, followed by europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium.