Mining companies rallied after a slate of upbeat Chinese data eased worries of a slowdown in the world's second largest economy.Fresnillo and Glencore Xstrata were the top risers followed by Randgold Resources, Anglo American and Rio Tinto. Vodafone Group edged higher after announcing it would launch its 4G service later this month.On the downside, Standard Life's shares declined after it reported first half operating profits that came in £14m lower than analysts expected at £304m.Marks & Spencer fell following reports it would shut four Irish shops with the loss of 180 jobs.BAE Systems slumped after it emerged documents relating to the Serious Fraud Office's investigation into the company's arms deal with Saudi Arabia were accidentally lost by the agency.FTSE 100 - RisersFresnillo (FRES) 1,014.00p +5.96%Glencore Xstrata (GLEN) 292.00p +4.14%Randgold Resources Ltd. (RRS) 4,591.00p +3.87%Anglo American (AAL) 1,510.50p +3.85%Rio Tinto (RIO) 3,104.50p +2.92%Vedanta Resources (VED) 1,212.00p +2.89%Antofagasta (ANTO) 899.00p +2.57%BHP Billiton (BLT) 1,942.00p +2.26%Aggreko (AGK) 1,682.00p +1.88%Vodafone Group (VOD) 200.45p +1.85%FTSE 100 - FallersStandard Life (SL.) 362.00p -4.11%Marks & Spencer Group (MKS) 473.70p -2.55%Persimmon (PSN) 1,227.00p -1.60%Next (NXT) 4,925.00p -1.46%Prudential (PRU) 1,172.00p -1.35%BAE Systems (BA.) 433.20p -1.32%InterContinental Hotels Group (IHG) 1,952.00p -1.31%Burberry Group (BRBY) 1,545.00p -1.15%Old Mutual (OML) 200.70p -1.13%Barclays (BARC) 283.75p -1.12%RD