FTSE 100 Index, the British benchmark stock market gauge, Monday edged down 0.11 percent, or 7.66 points, to 6688.62 points.
Energy and mining sectors dropped significantly, with Anglo American led the top losers with a price drop of 3.97 percent.
Prices of BHP Billiton, Glencore, Rio Tinto and Fresnillo dropped by 3.85 percent, 3.68 percent, 2.17 percent and 2.16 percent respectively.
Intertek Group led the top gainers of the blue chips with a share price increase of 11.20 percent, followed by Rolls-Royce Holdings (5.92 percent), International Consolidated Airlines Group (3.18 percent), SABMiller (2.66 percent) and Smiths Group (1.77 percent).
Trading volume in FTSE 100 companies was around 30 percent larger than its 30-day average. And the index has gained 4.19 percent so far this year.