News of a rebound in the UK construction sector added to cheer over upbeat manufacturing data in both the UK and US the previous session.
The Footsie closed 42.3 points higher, at 6,000.1, after yesterday's 1.6% surge. Survey data showing a rebound in the UK construction sector last month after a snow-hit December helped extend gains in London.
The figures also sent the pound surging to a three-month high against the US dollar.
Sterling rose to $1.62 and gained strength against most major currencies, up 0.5% to 1.17 euros.
The biggest Footsie risers were Imperial Tobacco, ahead 106p to 1900p, Arm Holdings, up 24p to 571.5p, Lonmin, up 69p to 1768p and Rio Tinto, up 163.5p, to 4507.5p.
The biggest Footsie fallers were GKN, down 10p to 193.8p, International Power, off 14.4p to 405p, AMEC, down 35p to 1216p and AstraZeneca, down 84p, to 2947.5p.