Mining stocks are firmly in the red Monday with platinum miners the worst hit as prices for the precious metal fell back. Metals prices have eased amid concerns hopes of an economic recovery, which have sparked a rally in commodities, may be over-optimistic.Braemore Resources and Jubilee Platinum, which both mine for the precious metal in South Africa, are the worst performers in the mining sector.Defensive stocks, such as the tobacco firms Imperial and British American and the cleaning products maker Reckitt Benckiser, are among the stocks in the red.Top performing sectors so far todayPersonal Goods 7,657.41 +1.51%Household Goods 5,529.98 +1.10%Mobile Telecommunications 2,648.07 +0.92%Tobacco 20,850.04 +0.90%Fixed Line Telecommunications 1,563.68 +0.42%Bottom performing sectors so far todayMining 12,928.92 -4.99%Industrial Metals 3,619.61 -2.83%Oil & Gas Producers 6,499.28 -2.81%Industrial Engineering 2,352.89 -2.74%Oil Equipment Services & Distribution 11,791.72 -2.29%