The mining sector is heading higher on Friday afternoon, as stocks track metals prices upwards.Copper, gold and silver prices are firmer on a weak US dollar, as investors look to 'safe-haven' qualities of precious metals.Blue chips Antofagasta, Kazakhmys, Lonmin and Randgold Resources are all in demand.Only two sectors are in the red today, with industrial transportation falling the hardest.Distribution and logistics giant Stobart is under the weather, with the share price losing 2%. On Monday, the group reported that full-year revenue topped the half billion pounds mark but underlying profits eased a tad.---BCTop performing sectors so far todayPersonal Goods 20,853.97 +1.86%Automobiles & Parts 5,026.84 +1.65%Mining 25,511.48 +1.64%Industrial Metals & Mining 7,642.71 +1.63%Mobile Telecommunications 3,882.30 +1.47%Bottom performing sectors so far todayIndustrial Transportation 2,607.72 -0.26%Pharmaceuticals & Biotechnology 9,478.63 -0.04%Alternative Energy null 0.00%Leisure Goods null 0.00%Media 4,227.28 +0.13%