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Iron ore WikipediaLower-grade sources of iron ore generally require beneficiation, using techniques like crushing, milling, gravity or heavy media separation, screening, and silica ...Witwaters
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Iron ore in Africa WikipediaIron ore production in Africa is dominated by South Africa, Mauritania and Algeria; Zimbabwe and Morocco produce ore for use within the country. Many countries ...Mi
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Peak copper WikipediaPeak copper is the point in time at which the maximum global copper production rate is reached. Since copper is a finite resource, at some point in the future new ...How Co