* Gold hits weakest in 7 weeks on rising dollar * Platinum off lows on bargain hunting (Updates prices)
SINGAPORE, Aug 8 (Reuters) - Gold tumbled to a 7-week low on Friday, losing some of its shine as an alternative investment after the dollar jumped against the euro, prompting some investors to switch funds back into currencies.
Platinum bounced off lows but fears of supply curbs following a one-day strike in main producer South Africa subsided. Silver was down, while palladium still attracted bargain hunting after falling to its lowest level in eight months this week.
Gold <XAU=> dropped to $870.25/871.25 an ounce from $871.05/872.45 an ounce late in New York on Thursday, having hit an intraday low of $866.25 an ounce -- its weakest since June 26.
"In the absence of commodity-type news, I think the market is probably going to be weaker. I think it's mainly dollar-dominated today," said Mark Pervan, a ANZ senior commodity analyst.
"I think around $850 would be a critical level," said Pervan, who pegged resistance at $900.
Gold has dropped more than 15 percent in value since spiking to a record high of $1,030.80 hit in March.
The euro fell as far as $1.5195, a five-month low, after European Central Bank President Jean-Claude Trichet cooled expectations for an interest rate hike by sounding a note of concern over the slowing euro zone economy. [
]UBS cut its one-month gold forecast by 15 percent to $850 from $1,000 an ounce, citing improving risk appetite, stronger equities and a firmer dollar. [
]"People get out of the market. Jewellery makers are waiting for the good time to buy, so actual demand is not so good. The same goes to platinum," said Yukuji Sonoda, a precious metals analyst at Daiichi Commodities in Tokyo.
"I had thought gold will stabilise at $900. People are disappointed," he said.
Spot platinum <XPT=> rose to $1,578.00/1,598.00 an ounce from $1,572.00/1,592.00 late in New York on bargain hunting after falling as low as $1,564.50 an ounce earlier in the day.
Platinum prices have taken a dramatic turn since spiking to a record high above $2,000 an ounce in early March, losing much of their gains to profit taking and a slowing U.S. economy that threatens to slash demand for autocatalysts.
The bulk of the world's platinum is used by automakers in autocatalyst systems that scrub exhaust fumes of dangerous and environmentally-damaging chemicals.
The most active Tokyo platinum contract for June 2009 delivery <0#JPL:> on the Tokyo Comodity Exchange ended the morning session unchanged at 5,555 yen per gram -- off intraday low of 5,481 yen.
New York gold futures <GCZ8> fell $0.4 to $877.50 an ounce.
Spot palladium <XPD=> rose to $345.00/350.00 an ounce from $344.00/352.00 late in New York. Silver <XAG=> edged down to $16.11/16.16 an ounce from $16.14/16.23 late in New York. Precious metals prices at 0218 GMT Metal Last Change Pct chg YTD pct chg Turnover Spot Gold 870.00 -1.20 -0.14 4.48 Spot Silver 16.11 -0.05 -0.31 9.07 Spot Platinum 1578.00 6.00 +0.38 3.82 Spot Palladium 345.00 2.00 +0.58 -6.25 TOCOM Gold 3084.00 -36.00 -1.15 0.78 26903 TOCOM Platinum 5555.00 0.00 +0.00 4.05 10565 TOCOM Silver 571.50 -18.30 -3.10 5.64 689 TOCOM Palladium 1243.00 -22.00 -1.74 -7.99 215 Euro/Dollar 1.5242 Dollar/Yen 109.58 TOCOM prices in yen per gram, except TOCOM silver which is priced in yen per 10 grams. Spot prices in $ per ounce. (Editing by Clarence Fernandez)