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Updated: May 18, 2025
The blanket table is, however, a very unsatisfactory concentrator at best, and is giving place to mechanical concentrators of various descriptions. An ancient Egyptian gold washing table was used by the Egyptians in treating the gold ores of Lower Egypt.
As a result of a vast deal of co-operative thinking and careful experimentation; the last named process, has been so perfected and cheapened, as to entirely supersede the first two. The powerful batteries of Solaris concentrators, which you see around the power-house, and at various points on the farm, are important factors in this work.
I watched the "concentrators" at work big tanks containing mud and water and invisible diamonds and was told that each could stir and churn and properly treat 300 car-loads of mud per day 1,600 pounds to the car-load and reduce it to 3 car-loads of slush. I saw the 3 carloads of slush taken to the "pulsators" and there reduced to quarter of a load of nice clean dark-colored sand.
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