Mining concerns drag FTSE lower

Xstrata has slipped 2.22% to £26.81, closely followed by Anglo American which is down 2.18% to £26.46, while Antofagasta has dropped 2.16% to 509.75p, and BAE Systems has fallen 2.26% to 443.25p. However, Amvescap is the biggest loser with a fall of 2.43% to 582p, although losses are being limited by Tesco which is up 0.16% to 458.5p, while Pearson has gained 0.23% to 857p. Drug company GlaxoSmithKline is posting the biggest gains with a rise of 0.62% to £14.68, closely followed by BT Group which is up 0.56% to 312.25p, while Prudential has added 0.27% to 735.5p. In Japan, the Nikkei 2...