Australian shares fall as commodity rally loses steam

Feb 24 (Reuters) - Australian shares fell on Wednesday as a drop in gold and iron ore prices pressured commodity-related stocks after a stellar two-session rally on economic recovery optimism. The S&P/ASX 200 index .AXJO fell 0.5% to 6,806.4 by 0035 GMT, after closing 0.9% higher on Tuesday. Miners .AXMM...