Rare earth ore, also known as rare earth element ore or rare earth metal ore, mainly exists in the earth’s crust as minerals. As the basic component of minerals, it exists in the mineral lattice as ionic compound, forming the basic components of minerals.

There are 17 kinds of rare earth elements: lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb ), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc), and yttrium (Y). All are extremely precious minerals, the main raw materials of countless high-precision industries, and have important economic and strategic value.