CL:Copper, gold, oil prices drop amid global concerns
Worries that Europe's debt crisis could drag down the global economy helped drive copper, gold and other commodities lower on Monday. Added pressure came from traders pushing up the dollar against other currencies.
Metals and crude oil fell sharply. Copper, whose price is closely tied to expectations for economic growth, lost 3.8 percent to end at $3.782 per pound.
Benchmark crude lost $2.26, or 2.6 percent, to finish at $85.70 per barrel in New York.
"Copper and crude oil are essentially your biggest indicators for economic health," Patton said. When they fall it's a sign that traders are laying bets the world economy will slow down.