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Unformatted text preview: be separated Alluvial mining is done on beaches and river beds The water is held back and the miners dig down to the level of earth where diamonds are found, this sand is also brought to a screening plant Artificial Diamonds Made in factories using over 3000 F and 1 million lbs. of pressure per square inch They use graphite, which is the crystalline form of carbon The end resulting diamonds are mostly used in machine and cutting tools and thermal conductors...
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