Molycorp share prices sink to record lows following many difficulties last year, leaving the American rare earth producer a highly appealing takeover target
Greenland’s treasure trove of rare earth metals, the largest deposit outside of China, cannot be mined because the elements are connected to restricted radioactive materials.
Only four metals, or element groups, made the list for the American Physical Society, Materials Research Society and the US Department of Energy's uncatalogued for 'critical metals': Rare Earth elements, platinum group metals, lithium and cobalt.