* Gold firms near highest in more than a week
* Platinum up on bargain hunting but lacks physical demand (Updates prices)
By Lewa Pardomuan
SINGAPORE, Aug 22 (Reuters) - Gold advanced on Friday, holding near its strongest in more than a week hit the previous day as investors regained confidence on a weaker dollar and tensions between Russia and the United States. Platinum, palladium and silver also rose to track gold, which has bounced eight percent since tumbling to a nine-month low last week, when a surging U.S. dollar ignited heavy selling.
Gold <XAU=> rose to $835.55/837.55 an ounce from $832.40/833.40 an ounce late in New York. Gold rallied to $839 an ounce on Thursday, its strongest since Aug. 11, also driven by news of a bullion coin shortage in the U.S.
Despite the gains, gold was still well below a record high of $1,030.80 an ounce hit in March. Analysts pegged resistance levels at $840 and $850 an ounce.
"Whether or not it will be sustained, I guess it really depends on what rhetoric we get from Russia in the days ahead. I believe it's possible we may go on further from here," said Darren Heathcote of Investec Australia in Sydney.
"There seems to be a bit of a return to favour commodities again in the last couple of days. I think the physical buying has helped to support it as well," he said.
Oil <CLc1> was steady around $121 on Friday, after jumping nearly 5 percent in previous session on tensions between the United States and Russia and asliding U.S. dollar. [
]The United States said on Thursday that Russia must withdraw its military forces from Georgia "now", saying Moscow was in violation of a commitment to do so made earlier this month. [
]In theory, surging oil prices and geopolitical tensions lift gold's safe-haven appeal.
New York gold futures <GCZ8> added $2.5 an ounce to $841.50.
Spot platinum <XPT=> fell to $1,443.00/1,463.50 an ounce from $1,449.50/1,469.50 an ounce late in New York, having hit a 1-week high of $1,457 an ounce earlier on Friday.
Dealers also noted bargain buying from Japanese retail investors and trading houses on Tokyo platinum futures <0#JPL:>.
"I personally think platinum prices have reached their bottom. But at this moment, I couldn't confirm if automobile companies have started to buy," said Yukuji Sonoda, precious metals analyst at Daiichi Commodities in Tokyo.
Platinum tumbled to its weakest since last September around $1,296 on Tuesday on weak gold prices and worries about falling demand for autocatalysts because of a slowing U.S. economy and poor car sales.
It struck a lifetime high of $2,290 in March after a power shortage in main producer South Africa disrupted mining and triggered supply worries.
Spot palladium <XPD=> inched up to $289.00/297.00 an ounce from $286.00/294.00 an ounce. Silver <XAG=> firmed to $13.87/13.93 an ounce from $13.80/13.87 an ounce.
The most active Tokyo gold contract for June 2009 delivery <0#JAU:> on the Tokyo Commodity Exchange rose 42 yen per gram to 2,934 yen. Precious metals prices at 0148 GMT Metal Last Change Pct chg YTD pct chg Turnover Spot Gold 835.55 0.10 +0.01 0.34 Spot Silver 13.86 0.05 +0.36 -6.16 Spot Platinum 1448.00 -2.00 -0.14 -4.74 Spot Palladium 289.00 2.50 +0.87 -21.47 TOCOM Gold 2934.00 42.00 +1.45 -4.12 17092 TOCOM Platinum 5045.00 209.00 +4.32 -5.51 9636 TOCOM Silver 488.50 14.60 +3.08 -9.70 517 TOCOM Palladium 1044.00 20.00 +1.95 -22.72 559 Euro/Dollar 1.4878 Dollar/Yen 108.58 TOCOM prices in yen per gram, except TOCOM silver which is priced in yen per 10 grams. Spot prices in $ per ounce. (Editing by Michael Urquhart)