* Gold dips on firmer dollar, platinum hits 4-week low
* Investors await clues on future of U.S. monetary policy
* Silver below $18 (Updates prices)
By Lewa Pardomuan
SINGAPORE, July 7 (Reuters) - Gold slipped on Monday as the dollar crept up against the euro, reducing the metal's appeal as an alternative investment, while platinum dropped to its lowest level in almost four weeks on fears of weakening demand.
Gold <XAU=> fell to $925.25/926.25 an ounce from $932.00/933.00 an ounce in London on Friday. U.S. markets were closed on Friday for the Independence Day holiday.
Trading was muted before U.S. players returned to the market after the holiday. Dealers expected gold to trade in a range of $920 to $940 range with movements in the dollar likely to offer direction.
Spot platinum <XPT=> hit a low of $1,991.50 an ounce, its lowest level since June 12, down from $1,999.00/2,019.00 in London on fears a slowing U.S. economy could hit demand for the metal used in auto catalysts to cleanse fumes from motor exhausts.
"Perhaps the general economic outlook is weighing on demand and there are talks of slowing growth in demand for auto sales in the U.S.," said Adrian Koh, analyst at Philip Futures in Singapore.
"Platinum seems technically weak at the moment and has moved below the important $2,000 level. So, the next level I am looking at is $1,950," he said.
Platinum has lost 13 percent in value since hitting a record of $2,290 in March. The metal, also used in jewellery, had rallied after a power crisis in main producer South Africa disrupted mining and sparked fears of a supply deficit.
"I am still longer-term positive on platinum and palladium. At the moment, they look a bit top-heavy and could move lower. But in the longer term, the trend is still slowing moving higher," said Koh.
Spot palladium <XPD=> rose to $451.50/459.50 an ounce from $450.00/455.00 an ounce.
The dollar edged up against the euro as investors waited for clues about the future path of U.S. monetary policy from top Federal Reserve officials including Chairman Ben Bernanke this week. [
].Oil <CLc1> fell $1.59 to $143.73 a barrel, below an all-time high of $145.85 hit on Thursday. [
]"There's some selling from Japanese investors and oil prices also fell but trading volume is not that big," said a dealer in Hong Kong.
"I don't see physical buying because people are a bit bearish. I mean, they will be waiting for the price to fall further before buying again," he said.
Gold futures for August delivery <GCQ8> on the COMEX division of the New York Mercantile Exchange fell $6.4 an ounce to $927.1.
Silver <XAG=> fell to $17.91/17.97 an ounce from $18.02/18.12 late in London -- well below an 11-week high of $18.46 hit last week.
The most active Tokyo platinum contract for June 2009 delivery <0#JPL:> on the Tokyo Commodity Exchange ended the morning session 35 yen per gram lower at 6,808 yen, reflecting weakness in cash market. Precious metals prices at 0253 GMT Metal Last Change Pct chg YTD pct chg Turnover Spot Gold 925.75 -6.55 -0.70 11.17 Spot Silver 17.91 -0.14 -0.78 21.26 Spot Platinum 1993.00 -4.50 -0.23 31.12 Spot Palladium 451.00 -0.50 -0.11 22.55 TOCOM Gold 3225.00 -10.00 -0.31 5.39 15167 TOCOM Platinum 6808.00 -35.00 -0.51 27.51 11918 TOCOM Silver 625.50 -5.00 -0.79 15.62 311 TOCOM Palladium 1588.00 -20.00 -1.24 17.54 667 Euro/Dollar 1.5641 Dollar/Yen 107.09 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)