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The first step in this process is breaking down large chunks of rock into smaller pieces. At a mill, large machines known as crushers reduce the ore to pieces no
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To get a sense of the scale of the process, at the Yanacocha mine in Peru for example, Newmont Mining must extract and leach approximately 30 tons of dirt and
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Sep 17, 2012 In 2010, Peru extracted a total of 170 tons of gold from its mountains and this— and her mother's work crushing rock—represents her family's
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