UK Stocks-Factors to watch on Oct 25

Oct 25 (Reuters) - Britain's FTSE 100 index is seen opening up by 13-17 points, or 0.2 percent, on Tuesday, according to financial bookmakers. * The UK blue chip index closed down 0.5 percent at 6,986.40 points on Monday, as energy stocks came under pressure following a drop in crude oil prices and gold miners tracked weaker precious metals. * GLENCORE: Glencore and Japanese power utilities have settled quarterly thermal coal contract prices at $94.75 a tonne, up from around $64 la