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Machine Uni Water Magnetic For Gold Recuperation Canada

Gold has a specific gravity of 15 to 19.3 depending on its purity. The black sands will weigh 14 to 13 as much as the gold. A cubic foot of black sand will weigh about 225 lbs. Or 26.7 lbs. per gallon. These heavy black sands present the major problem in fine gold recovery for recreational gold miners.

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