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2016 4 8 The copper mine nature of Jiangxi Dexing copper mineral contains easy composition: useful ore are mainly Pyrite, chalcopyrite, molybdenite, also refers to bornite, chalcocite, tetrahedrite, and galena; The metal minerals are mainly quartz, sericite, chlorite, and kaolinite. The particle size of pyrite is 0.003 0.4mm and mainly are coarse grain.