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small rock gold ore separating line in Philadelphia USA North America

small rock gold ore separating line in Philadelphia USA North America

TheUnited Statesis the third-largestgold-producing country, after South Africa and Australia. Mines in Nevada account for more than 80 percent of U.S. production. According to a 2005 article in The New York Times, Nevada had approximately 20 open pitgoldmines, about half of the active mines in theUnited States…

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