By Carla Mozee, MarketWatch

LONDON (MarketWatch) -- U.K. stocks fell Friday, with drop in mining shares putting the FTSE 100 in line for its first loss in four days.

The benchmark index fell 0.2% to 6,858.14, paring its weekly decline to 0.6%. It's facing a 1.1% for May, during which it reached its best closing level since 1999.

Miners were ranked among the session's sharpest decliners, as iron-ore prices slumped and the metal looked set to log its sixth monthly loss for a record run of declines. With iron ore below $96 per ton, the move "will make some names in the resource sector unhappy," wrote Scott Schuberg, chief executive at Australia-based Rivkin Securities, in a note Friday.

Anglo American PLC shares slid 3.4%, their heaviest fall in nearly two months. Rio Tinto PLC fell 2.9% and BHP Billiton PLC (BHP) lost 2.6%. Silver and gold producer Fresnillo PLC also traded down, by 2.6%.

But Smith & Nephew PLC shares again topped the FTSE 100 as they rose 2.4%. The shares have jumped nearly 10% since Wednesday on speculation that the artificial-joint maker will land an acquisition bid. Medical-device maker Stryker Corp.'s (SYK) chief told Fox Business on Thursday that his company had worked on a possible bid for its U.S. rival, but a formal offer hasn't materialized.

Meanwhile, consumer confidence in the U.K. hit a nine-year high, according to polling firm GfK, highlighting the view that the British economy continues to improve.

More must-reads from MarketWatch:

German consumer spending fell 0.9% in April

Japan inflation rises; imminent easing less likely

These REITs' dividends pay up to 19%

Subscribe to WSJ: http://online.wsj.com?mod=djnwires

Rio Tinto (NYSE:RIO)
Historical Stock Chart
From Jun 2024 to Jul 2024 Click Here for more Rio Tinto Charts.
Rio Tinto (NYSE:RIO)
Historical Stock Chart
From Jul 2023 to Jul 2024 Click Here for more Rio Tinto Charts.