Rare earth elements (REEs)
Rare earth elements are a group of metals comprising the fifteen lanthanides plus scandium and yttrium. In elemental form, REEs have a metallic appearance and are fairly soft, malleable and ductile. Mineralization is associated with intrusive magmatic rocks (carbonatite, alkaline or hyperalkaline rocks), metasomatic rocks or placer deposits.
Cerium (Ce) Lanthanum (La) Neodymium (Nd) Praseodymium (Pr) Samarium (Sm) Europium Ytterbium