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Feb 26, 2018 . Mining equipment that require the separation of very fine gold from the concentrates can range from small to medium sized and have shown to be . Artisanal mining refers to the use of simple rudimentary tools and processes to extract minerals resources such as gold from the soils on a small scale. In most.
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May 1, 2014 . cury-free method is environmentally benign and with the bonus that the miners recover up to twice as much gold without investment in expensive equipment. 2. Whole ore Amalgamation. One of the most widespread gold extraction methods used by small-scale gold miners is whole ore amalgama- tion.
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