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石膏的用途广泛,它不但是水泥、新型建材和陶瓷的重要原材料,而且在农业、轻工化工、食品、医药、文化艺术等方面也大有用途,还可出口换取外汇。我国的石膏资源丰富,在山东、山西、河南、江苏、安徽、湖南、湖北、广东、四川、云南、甘肃、宁夏、辽宁等省、区,分别有大小不等的露天矿或地下矿。地下资源毕竟越用越少,必须爱惜。可是,现在有的石膏矿被乱挖乱采:只采厚矿层,不采薄矿层;只采一、二级品,不采三、四级品。如太原西山圪(土尞)沟石膏矿区及晋祠石膏矿区,当地社队农民只采一、二级品,粘土质石膏则留在地下不采;一、二级品的粉矿、碎矿也被留在地下,白白地扔掉。山西灵石石膏矿区、宁夏中卫县小红
Gypsum is widely used. It is not only an important raw material for cement, new building materials and ceramics, but also useful in agriculture, light industry and chemical engineering, food, medicine, culture and arts, etc. It can also be exported in exchange for foreign exchange. China’s gypsum is rich in resources. There are open-pit or underground mines of various sizes in Shandong, Shanxi, Henan, Jiangsu, Anhui, Hunan, Hubei, Guangdong, Sichuan, Yunnan, Gansu, Ningxia and Liaoning provinces and regions. After all, the more you use less underground resources, we must cherish. However, some gypsum mines are dug and chaos mining: thick mining only, not mining thin layers; only the first and second grade products, not the third and fourth grade products. Such as Taiyuan Xishanfang (Tuo) gypsum mining area and Jinci gypsum mining area, the local community team farmers only one or two products, clay plaster is left in the underground mining; one, two grade of the powder ore, crushing ore Was left in the ground, throw away in vain. Shanxi Lingshi gypsum mining area, Ningxia Zhongwei County red