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Gold Milling Process Primitive and Basic. By means of a heavy long wooden crowbar, shod with a long strongly made chiselpointed iron socket, and with the help of the stream of water, which rarely exceeds 50 cubic feet per minute, the surface soil and weathered countryrock are loosened and sluiced away.

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16 Energy and Mineral Resources. The ingredients for fertilizers are mined: nitrogen from the atmosphere using the Haber process [3], potassium from the hydrosphere (lakes or oceans) by evaporation, and phosphorus from the lithosphere (minerals like apatite from phosphorite rock, found in Florida, North Carolina, Idaho, Utah, and around the world).

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the act of extracting or the condition of being extracted. something extracted; an extract. the act or an instance of extracting a tooth or teeth. a tooth or teeth extracted. origin, descent, lineage, or ancestryof German extraction.

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Dilution is the quantity of squander rock that is undisturbed with the ore. An effectual technique is for a miner to employ a slusher, which is an electric appliance with a 48inch scraper container to take away ore from a stope. The bucket is fitted to a cable affixed to the visage of the stope.

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