In this project the aim is the characterization and mineralogical studies of ROM ore by the XRF-XRD Technique for identification of minerals under polarizes microscope the study of ore minerals like Chalcopyrite, Pyrite, Hematite, Mica, etc., has been identified, the studies show that about 5% are opaque minerals. Mineralogical studies show that the major gangue minerals are such as Siderite, Quartz and Pyrite. Pyrite could be observed in the forms of dark mineral in polished specimens that include 10% of mineral, by counting it. Liberation studies indicate that +75 microns is the optimum liberation size and thus, recommended for flotation unit of the Rangin Flez plant.