Minerals Engineering, Vol.122, 130-141, 2018
Drill core texture as geometallurgical indicator for the Mont-Wright iron ore deposit (Quebec, Canada)
Ore texture has been traditionally used by geologists during geological mapping and logging for mine planning. However, using textural information for mineral processing prediction has been rarely explored. In this paper, the correlation between the ore texture (as observed from the surface of drill cores) and the core samples response to lab scale mineral processing operations was studied for the Mont-Wright iron ore deposit (Quebec, Canada). The potential of drill core textures as a geometallurgical indicator was assessed. Through the mineralogical characterization of the Mont-Wright textures, differences were observed in the iron oxides liberation and grain size distribution, and in the iron-by-size pattern associated to each drill core texture. These differences were reflected in the samples processing performance: different trends were observed in the comminution response and iron oxides separability by heavy liquid separation. According to these results, a classification of ore textures calibrated to mineral processing performances was established for the Mont-Wright deposit. This classification is intended to serve as geometallurgical indicator.
Keywords:Geometallurgy;Drill core texture;Iron ores;Comminution response;Mineral processing performance prediction