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Determination of liberation size of Akiri copper ore, Nasarawa state, north-central Nigeria 1M.N.S. Usaini, 2Mohammed Ali, 3Hussaina Abubakar Usman Department of Mineral Resources Engineering, Kaduna Polytechnic, Kaduna Abstract - This research work

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The breaking, crushing, or grinding of coal, ore, or rock. Complex Ore Ore containing more than one economic mineral. Complex ores are more difficult to process due to the varying chemical properties of the target minerals. For example, some copper minerals

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 · The copper head grades for copper oxide ore and copper sulfide ore samples were 0.3% and 0.8% respectively. The copper grade did not vary significantly with respect to …