containing mineral, but as a heavy rare earth element (hree) it is more common in hree-enriched minerals such as xenotime and euxenite. additionally, holmium is present in ion adsorption clays, which are a major source of hrees due to their relative ease of processing, despite the low percentage quantities...
, which in turn has kept production relatively low and prices relatively high. in absolute terms, however, scandium is not rare, and therefore increasing recognition of scandium's benefits may eventually lead to expanded demand and production. scandium is often used in small quantities to stabilize or...