FRANKFURT (MarketWatch) -- Gold futures dropped sharply on Thursday, as the dollar gained against most other major currencies, weighing on dollar-denominated gold prices. Gold for December delivery fell $15.60, or 1.5%, to $1,049.10 an ounce in electronic trading on Globex. The contract earlier fell to an intraday low of $1,047.40 an ounce. Other metals also declined, with silver prices trading down 3%.