Rare Earths are a series of 15 chemically similar elements that occur and are recovered together consisting of two distinct categories based on atomic weight: Light Rare Earths (LREOs) and Heavy Rare Earths (HREOs)

Critical Rare Earths Oxide (CREO) grade is a better metric to benchmark Rare Earth projects.

Each element has a range of distinctive physical properties which allow them to be used in a variety of technological applications - Magnetic, optical, electrical, catalytic and metallurgical.