* Stock weakness bolsters alternative investment appeal
* Strong physical buying seen supportive to prices
* Platinum group metals weighed by poor economic data (Recasts, updates with quotes, closing prices, adds NEW YORK to dateline, changes byline)
By Frank Tang and Jan Harvey
NEW YORK/LONDON, Dec 9 (Reuters) - Gold futures ended slightly higher on Tuesday as weaker stock markets bolstered bullion's appeal as an alternative investment.
"The gold market has been moving sideways, waiting for further development in the financial markets. As the stock market shows signs of prosperity, gold buyers will become more aggressive in returning," said George Nickas, commodity broker at FC Stone.
U.S. stocks turned lower sharply after rallying in the previous two sessions, as investors mulled whether recent gains have staying power. [
]Spot gold <XAU=> was at $773.25 at 2:42 p.m. EST (1942 GMT), up 0.3 percent from Monday's close of $771.30.
U.S. gold for February delivery <GCG9> settled up $4.90 at $774.20 an ounce on the COMEX division of the New York Mercantile Exchange.
Gold held onto gains in spite of a sharp drop of oil, the other main external driver of gold. U.S. crude futures <CLc1> ended down nearly $2 at $42.07 per barrel.
Falling crude prices can undermine confidence in commodities as an asset class, and dent interest in gold as a hedge against oil-led inflation.
Meanwhile, market talk of a gold sale by the International Monetary Fund failed to dampen sentiment.
In April, the IMF had agreed to put its finances on sounder footing by selling some of its gold and investing in other asset classes such as bonds or equities.
However, approval of the U.S. Congress will be needed before any gold sales could begin.
PHYSICAL DEMAND SEEN SUPPORTIVE
In addition, resilient physical gold demand should boost prices in the near term, analysts said.
Thom Calandra, natural resources analyst and chief columnist for Stockhouse.com, said that high gold leasing rates <LGLR> and the lofty premium of gold coins and bars underscored strong physical buying.
"That demand is not currently reflected in the futures prices and other paper prices," Calandra said.
Among the other precious metals, platinum slipped a touch as investors worried slowing economic activity would hit demand for the metal, which is chiefly used to make catalytic converters.
Economic news was weak on Tuesday. Data showed Japan's economy contracted at a faster pace than anticipated in the third quarter, while British industrial output fell at its sharpest pace in nearly six years in October. [
]A survey from the Organisation for Economic Co-operation and Development (OECD) also said the U.S. economy will probably get worse before it gets better. [
]News on Monday of developments in U.S. government plans to bail out ailing carmakers boosted the precious metal that session, but the fillip was short-lived.
Spot platinum <XPT=> at $800 an ounce, down 2.6 percent from its previous finish of $821 late in New York on Monday, while palladium <XPD=> was at $174.00, which was 0.6 percent higher than Monday's late quote of $173.
Spot silver <XAG=> was at $9.79, which was 1.6 percent lower than its Monday close of $9.95. (Reporting by Frank Tang; Editing by Marguerita Choy)