Abstract: In order to reasonably and efficiently develop and utilize a copper ore from Anhui Provence, the research on process mineralogy was investigated. The results show that chalcopyrite， pyrite, pyrrhotite, magnetite are the main valuable minerals, and associated gold and silver can be comprehensively recovered, gangue minerals are mainly garnet, quartz, pyroxene, talc, etc..Mineral structures are mainly idiomorphism-half idiomorphism grain structure, metasomatic texture, anhedral grain, and interstitial structure, stars and pots structure also exists. Mineral textures are mainly massive, disseminated, stripes (band) texture. Chalcopyrite often interstitial in gangue minerals in form of anhedral grain, some closed associated with pyrite, pyrrhotite and magnetite. Chalcopyrite are mainly finely disseminated. Magnetite many disseminated in irregular blocks or short banded aggregates, some intergrowth along the edge of pyrite minerals. The particle size of chalcopyrite is uneven,+75 μm accounted for 8.19%, -13.5 μm accounted for 25.17%, stage grinding stage separation process is proposed.

Key words: Copper ore, Process mineralogy, Chalcopyrite, Pyrite, Pyrrhotite, Magnetite, Dissemination characteristics