(Recasts, adds analyst comments and closing prices, adds NEW YORK to dateline)
By Frank Tang and Karl Plume
NEW YORK/LONDON, May 29 (Reuters) - Gold and other precious metals ended sharply lower on Thursday, as a tumultuous drop in crude oil prices combined with a dollar rise dampened bullion's appeal as an alternative investment.
Gold fell more than 2 percent to a two-week low, with platinum slipping more than 4 percent to touch a three-week trough and silver shedding 4.3 percent in choppy trade.
Spot gold <XAU=> fell as low as $874.05 an ounce and was last at $877.85/879.25 an ounce by New York's last quote at 2:15 p.m. EDT (1815 GMT), down from $899.65/901.05 in New York late on Wednesday.
"The weakness is across the board but on the precious side, it's more of a dollar thing," said Jeremy East, head of metals trading at Standard Chartered Bank.
"The markets are feeling that the U.S. economy is probably going to remain slow because of the housing issues. There's a general expectation that the Federal Reserve may have to start hiking interest rates at a time when the economy is still weak."
The dollar rose against a basket of major currencies after a government report showed the U.S. economy grew faster than expected in the first quarter, lifting demand for assets denominated in the U.S. currency. [
]"The dollar is substantially stronger and that has had an impact on the price," said David Holmes, director of precious metals sales at Dresdner Kleinwort.
A firmer dollar makes gold costlier for holders of other currencies and often lowers bullion demand. The metal is also generally seen as a hedge against oil-led inflation.
OIL PRICES WEIGH
U.S. crude futures <CLc1> ended more than $4 lower at $126.62 a barrel in spite of an unexpected large drop in U.S. stockpiles.
Gold's advance earlier this month to last week's peak above $935 on the back of record oil prices blunted physical demand for the metal. But demand should heat up again if prices stay under $900, which has been a psychological support level.
"Physical demand for gold is definitely returning to the market, certainly sub-$900, and that interest just grows as we approach $850," Holmes said.
In other markets, U.S. gold futures for August delivery <GCQ8> on the COMEX division of the New York Mercantile Exchange ended down $23.30, or 2.6 percent, at $881.70 an ounce.
RBC Capital Markets told clients in a note that smaller positions held by short-term traders in the gold futures market signaled that any possible subsequent rallies could be very sharp.
Platinum <PL:> fell to a low of $1,967 an ounce, its lowest since May 8, and was last at $1,987.50/2,007.50, against $2,059/2,079 in New York late on Wednesday.
"Platinum has done really well over the last six months but the dollar's strength could be leading to some profit taking," said BNP Paribas analyst David Thurtell.
The market ignored reports that power problems in South Africa, the world's largest platinum producer, would continue for years. [
]Eskom [
], which produces about 95 percent of South Africa's electricity, has rationed power through a process called load-shedding since January, when large gold and platinum mines in South Africa shut down for five days due to the power crisis.Spot silver <XAG=> sank to $16.61/16.69 an ounce from $17.37/17.43 late in New York on Wednesday, while palladium <XPD=> fell to $421.50/429.50 from its Wednesday close of $432/$440. (Additional reporting by Humeyra Pamuk and Atul Prakash in London, editing by Matthew Lewis)