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Define placer mining: the process of extracting minerals from a placer especially by washing, dredging, or hydraulic mining
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Coal Advantages and Disadvantages ... Coal Mining despite two hundred years remain as hazardous as ever resulting in thousands of deaths in India and China.
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placer mining: Ancient method of using water to excavate, transport, concentrate, and recover heavy minerals from alluvial or placer deposits. Examples of deposits ...
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A placer Mine is the use of water to excavate and transport minerals. It is the mining of alluvial deposits for minerals. Placer mining is used for delicate metal ...
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