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This paper provides an overview of the various issues influencing ore dilution in an underground mining. The paper reviews the dilution problem throughout the entire mining process, and provides a rational approach to underground mine design in order to minimize dilution. The stages contributing to dilution include orebody delineation, design and sequencing, stope development, drilling and blasting, and production stages. Vibrations generated by the drillingblasting operations during the ore production could accel...