IRONORE/ Mining heavyweights Rio Tinto RIO.AX, BHP Group BHP.AX and Fortescue Metals FMG.AX shed between 2.1% and 2.4% Energy stocks .AXEJ also weighed, dropping 0.5% as oil prices slipped on fears of a supply glut. By Tejaswi Marthi May 26 (Reuters) - Australian stocks snapped a four-day winning streak on Wednesday as heavyweight miners tracked a downturn in iron ore prices and offset gains in gold stocks, while investors remained cautious ahead of U.S. inflation data later this week. The metals and mining index .AXMM shed 1.4%, as iron ore prices slumped.