COPPER futures have closed down on the London Metal Exchange, propelled lower by moderate trading volumes allowing bears in the marketplace to direct prices. THE LME's three-month copper contract was down 1.0 per cent at $6,606.00 a metric ton at Tuesday's PM kerb close. The red metal was down on the day as low volumes heading into a US national holiday on Thursday allowed a bearish mood on the back of Chinese growth and dollar concerns to have an outsize impact. Positive US third-quarter data was neutralised by disappointing consumer confidence numbers. The US economy grew at a robust 3.9 per cent pace in the third quarter, stronger than previously estimated as business investment and consumer spending picked up But November's consumer confidence index fell to 88.7 from 94.1 in October, although it remained well above the 72.0 level of a year ago. Turnover was low "as the market winds down for US Thanksgiving," said Liz Grant at Sucden Financial. Aluminium closed up 0.1 per cent at $US2,049.00 a ton, zinc closed 0.9 per cent lower at $US2,271.00 a ton, nickel fell 0.8 per cent to finish at $US16,525.00, lead closed down 0.4 per cent at $US2,052.50 a ton, and tin closed down 1.4 per cent at $US20,200.00.