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    Breaking the rock during mining operations liberates and concentrates some of the metal values in the fines. Research show that upgraded fines can be screened from mine wastes and froth floated for early recovery of copper, molybdenum, gold, and silver.

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    Finally, once the rock is fully crushed we get to the part about separating out the gold from the crushed rock. Often, this is accomplished simply by very careful panning. Panning is the most suitable method if you only have an amount of rock less than about 15 or 20 pounds.

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