The KING shall speak.....Scandium is a silvery-white rare earth metallic element, and a critical mineral. Scandium oxide is used in the fabrication of solid oxide fuel cells, which are used as a power source for buildings as well as in niche products such as lasers and lighting for stadiums or studios. Scandium is also used to produce high-performance aluminum alloys to substantially increase strength, heat and corrosion resistance, as well as welding properties. MTX finds Scandium in Quebec.