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at this stage of the process, the chemical reactions begin.they convert the copper minerals into copper metal.we can illustrate the types of process using the
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silver and gold mining, cyanide solutions are used in a leaching process to concentrate the metal ore .a chemical asphyxiant is a gas prevents the blood from
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greatmining provides you a mining dictionary which helps you to find out the meaning of any difficult mining terms .acid mine water mine water that has free sulfuric acid, mostly due to the weathering of iron pyrites.active workings any place in a mine
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