At present, there are 140 kinds of known minerals in the world, and 86 kinds are from No.3 Mine. Rare metals such as beryllium, lithium, tantalum, niobium and cesium, and non-ferrous metals such as copper, nickel, lead, zinc and tungsten. Non-metallic minerals, such as mica, feldspar, Yingshi, barite and Hetian jade. And jewels such as hydrangea, violet, garnet and hibiscus. , accounting for 60% of the known useful minerals. However, rare metals and radioactive elements such as lithium, beryllium, samarium, molybdenum, rubidium, cesium, hafnium, uranium and thorium accounted for more than 90% of China's total reserves at that time. Among them, beryllium resources rank first in China, fifth in cesium, sixth in lithium and ninth in tantalum. Its large scale, many minerals, high grade and obvious zoning are rare at home and abroad.