* Gold below $800 for first time since December
* Silver tumbles 12 percent, TOCOM gold limit down (Updates prices to afternoon)
By Lewa Pardomuan
SINGAPORE, Aug 15 (Reuters) - Gold tumbled nearly 3 percent on Friday and slipped below $800 for the first time since December, with investors' confidence in precious metals shattered by falling oil prices and a surging U.S. dollar.
Silver, which normally tracks gold, was the hardest hit, falling more than 12 percent to its lowest since last September. Platinum fell 3 percent and palladium was at its lowest in nearly two years. Tokyo's platinum and gold futures hit limit down.
Spot gold <XAU=> hit an intraday low of $787.10, its weakest since late December, down from $811.25/812.65 late in New York on Thursday and well below an all-time high of $1,030.80 in March.
"The dollar's continuing uptrend is a key factor depressing commodities in general and triggering heavy sales in gold," said Shuji Sugata, manager at Mitsubishi Corp Futures and Securities Ltd in Tokyo.
"Japanese players are dumping their long-term positions after breaking through key levels this week. The market may be oversold, but the market is still in a downward trend."
Gold has lost much of this year's gains to profit taking, oil's declines fromrecord highs and more recently the dollar's rally against abasket of currencies which reduced the metal's safe-haven appeal.
"It's still early to say it's the end of the super-cycle but if the markets continue to fall like they are doing now, I am sure many people will be talking about it very soon," said Adrian Koh, analyst at Phillip Futures in Singapore.
"The region around $750 is very important because this is a long-term gold uptrend support. So, if it's broken, gold's really gone," he said.
The dollar hit a six-month high against the euro after data showed the euro zone economy contracted in the second quarter and U.S. consumer prices rose at a faster pace in July. [
]"We'll have some people targeting $750, but I think we would need to see a continuation in that dollar strength to give it sufficient momentum to head that way," said Darren Heathcote of Investec Australia in Sydney.
Oil <CLc1> fell more than $1 to below $114 a barrel on fears about the slowing global economy, with a stronger dollar also prompting funds to exit. [
]The rising dollar has reduced gold's appeal as an alternative investment while falling oil has diminished the metal's role as a hedge against inflation.
New York gold futures <GCZ8> fell $16.00 an ounce to $798.50.
The benchmark contract for June 2009 delivery <0#JAU:> on the Tokyo Commodity Exchange sank by the daily 150 yen limit to 2,813 yen per gram, its weakest since late November.
Silver <XAG=> fell to $12.63/12.73 an ounce from $14.15/14.21 late in New York on Thursday.
"Near-term support should be around $12.38 then $12.00s," said Koh of Phillip Futures.
"On a more bearish note, we could in fact head all the way down to $11.50s because the long-term uptrend seems to be breached as of today's sharp downward movement," he said.
Spot platinum <XPT=> dropped to $1,438.50/1,458.50 an ounce from $1,481/1,501 an ounce. Spot palladium <XPD=> fell to $299.00/304.00 an ounce from$306.50/314.50 an ounce. Precious metals prices at 0557 GMT Metal Last Change Pct chg YTD pct chg Turnover Spot Gold 792.90 -12.70 -1.58 -4.78 Spot Silver 12.61 -1.53 -10.82 -14.62 Spot Platinum 1438.50 -42.50 -2.87 -5.36 Spot Palladium 295.00 -9.50 -3.12 -19.84 TOCOM Gold 2825.00 -138.00 -4.66 -7.68 62420 TOCOM Platinum 5096.00 -300.00 -5.56 -4.55 14401 TOCOM Silver 496.80 -40.00 -7.45 -8.17 225 TOCOM Palladium 1077.00 -90.00 -7.71 -20.28 1061 Euro/Dollar 1.4776 Dollar/Yen 110.24 TOCOM prices in yen per gram, except TOCOM silver which is priced in yen per 10 grams. Spot prices in $ per ounce. (Additional reporting by Chikafumi Hodo in TOKYO; Editing by Michael Urquhart)