* Gold down about 4% this week, silver 13% lower
* Dollar heads for best week in almost 6 months
* Platinum on track for worst week since March
* Interactive graphic tracking global spread of coronavirus: https://graphics.reuters.com/world-coronavirus-tracker-and-maps/ (Updates prices)
By Eileen Soreng
Sept 25 (Reuters) - Gold prices edged higher on Friday as the dollar retreated and hopes for more U.S. stimulus measures resurfaced, although the precious metal was on track to post its steepest weekly contraction since August.
Spot gold XAU= was up 0.3% at $1,873.83 per ounce at 0740 GMT. But prices are down about 4% for the week pressured by a broadly stronger greenback.
U.S. gold futures GCv1 rose 0.1% to $1,879.20.
The dollar index .DXY was off its two-month peak but was on track for its best week since early-April, up 1.5%, making gold more expensive for holders of other currencies. USD/
"With the data front quiet, it appears that investors want to stay nimble and hedged by leaving their money in dollar, rather than moving to precious metals or U.S. bonds," said Jeffrey Halley, a senior market analyst at OANDA.
Investors also grew hopeful after a lawmaker on Thursday said Democrats in the House of Representatives were working on a $2.2 trillion novel coronavirus stimulus package that could be voted on as soon as next week. Federal Reserve policymakers, including chair Jerome Powell, made multiple public appearances this week calling on the U.S. government to provide more fiscal support. prices have climbed more than 20% this year as central banks worldwide rolled out massive stimulus and slashed interest rates to near-zero to counter the economic damage from the COVID-19 pandemic.
Given that the coronavirus situation has not improved and interest rates are lower, gold is still bullish in the longer term, said Brian Lan, managing director at dealer GoldSilver Central in Singapore.
"Support level for gold lies around $1,845 and resistance at $1,900."
Silver XAG= edged up 0.1% to $23.32 per ounce and platinum XPT= rose 1% to $856.93. Both metals are on track for their worst week since mid-March.
Palladium XPD= gained 0.4% to $2,235.55 per ounce.