Rare-earth elements (REE) — also known as rare-earth minerals or rare-earth metals — are a group of 17 chemical elements of the periodic table. Although most of them are not terribly rare, they are highly strategic substances and vital components in most of the technology we employ every day.
The 17 rare-earth elements are: cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), holmium (Ho), lanthanum (La), lutetium (Lu), neodymium (Nd), praseodymium (Pr), promethium (Pm), samarium (Sm), scandium (Sc), terbium (Tb), thulium (Tm), ytterbium (Yb), and yttrium (Y).
Rainbow Rare Earths Ltd (LON:RBW) is a mining company focussed on production from, and expansion of, the high grade Gakara Rare Earth Project in Burundi, East Africa. With in-situ grades in the range of 47-67% Total Rare Earth Oxide (TREO), Gakara is one of the world’s richest rare earth deposits.