Tour Of Rio Tinto's Copper Operations

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Copper ore slurry passes through the froth flotation process at the... News PhotoAsia,Australia,Australian Culture,Cave,Copper,Copper Mine,Delivering,Factory,Finance,Floating On Water,Man Made Object,Metal,Metal Ore,Mine,Miner,Mining,New South Wales,Oceania,Rio Tinto Group,VerticalPhotographer Collection: Bloomberg 2012 BloombergCopper ore slurry passes through the froth flotation process at the processing plant of Rio Tinto Group's Northparkes copper and gold underground block cave mine in Parkes, New South Wales, Australia, on Thursday, Aug. 23, 2012. Northparkes last year produced 50,000 tons of copper. Rio owns 80 percent of the operation and Sumitomo Corp., the remainder. Photographer: Carla Gottgens/Bloomberg via Getty Images