| http://www.w3.org/ns/prov#value | - Grasberg???s milling and concentrating complex is the largest in the world, with four crushers and two giant semi-autogenous grinding (SAG) units processing a daily average of 240,000t of ore.???This is a high-grade resource, with averages of 1.5% copper and 2 g/t gold.???A flotation reagent is used to separate concentrate from the ore.
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