目前,我国已发现的矿产有171种,已探明储量的矿产有157种。从总体情况看,我国矿产资源的特点是总量大、贫矿多、富矿少;难选矿多、易选矿少;共生矿多、单一矿少。多年来,许多大中型企业开展了综合勘查、综合评价和综合利用。有资料显示,一些重点大型煤炭矿区采区回采率达到80%以上,金属矿山露天开采回采率达到85%以上,地下回采率达到80%以上;不少矿山铁矿选矿回收率达到85%左右,有色金属选矿回收率达到80%,磷、硫达到60%;50%以上的钒,22%以上的黄金、50%以上的铂、钯、碲、镓、铟、锗等稀有金属 At present, there are 171 kinds of minerals found in our country and 157 kinds of minerals have proven reserves. From the overall situation, China’s mineral resources are characterized by a large total amount of lean mines, rich in fewer mines; more refractory mines, less beneficiation; symbiotic mines, less single mine. Over the years, many large and medium-sized enterprises have conducted comprehensive surveys, comprehensive evaluations and comprehensive utilization. Data show that some major coal mining area mining recovery rate reached 80% or more, metal mining open pit recovery rate of 85% or more, underground recovery rate reached 80% or more; many ore beneficiation recovery rate of about 85% 50% of vanadium, more than 22% of gold, more than 50% of platinum, palladium, tellurium, gallium, indium, germanium and other rare metals