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 On Monday, silver for December fell 12.30 cents, or 0.6 percent, to $21.71 an ounce. Copper for the same month dropped 0.65 cents, or 0.2 percent, to $3.32 per pound. Platinum for January fell $6.80, or 0.5 percent, to $1,412.40 an ounce, and palladium for December dropped $4.65, or 0.6 percent, to $727.15 an ounce. In energy trading the price of oil fell as a government shutdown loomed. Benchmark oil for November fell 54 cents, or 0.5 percent, to $102.33 a barrel on the New York Mercantile Exchange. Wholesale gasoline fell 4 cents to $2.63 per gallon and natural gas lost 3 cents to $3.56 per 1,000 cubic feet. Heating oil retreated 2 cents to $2.97 per gallon. 
              
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