Maximum Total Recovery Through Mining High-Grade and Low-Grade Ore Together is Economically Sound

THE OPINION is held by many persons outside the mining industry, and by some within it, that mine operators customarily find it advantageous to mine only the richer parts of orebodies and to leave behind, perhaps permanently, leaner material which could be mined only at a lesser profit.
Keywords: Colorado School of Mines, Mining Geology and, ore, present, sinking fund, Mine, Mines, mining, Ore, Ores, Risk, Risks
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