Rose Ahlefeldt receives funding from the Australian Research Council. If you were to try reciting the periodic table, you might stumble before you got to the rare earth elements. Comprising yttrium ...

Part of the lanthanide series, erbium (Er) is a rare-earth element found in a wide range of minerals like blomstrandine, polycrase, fergusonite, euxenite, xenotime, and gadolinite. C.G. Mosander ...