Rare earths race: plan to turn ash into critical metals

Researchers plan to use ash waste from coal-fired power stations to extract rare earths. (David Crosling/AAP PHOTOS)

Australia could double its rare earth metals stocks without digging a new mine under a plan to turn coal waste into critical minerals.

Instead of waiting for new rare earth mines to become operational in 10 to 15 years, Monash University researchers say ash emitted from coal-fired power stations could be used to extract the metals in a cheaper and more environmentally friendly way.