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Iron Ore Explained Gold Ore Sie Reduction

Iron Ore Explained Gold Ore Sie Reduction

Iron ore should contain about 30 percent iron if it is to be mined profitably. Gold ores containing as little as 0.044 ounce 1.25 grams of gold per ton can be mined at a profit. Magnesium can be removed from sea water at a profit by special methods.

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Iron Ore Explained Gold Ore Sie Reduction