Australian shares retreat after 5-day rally as miners slump <!-- no image --> <div>Australian shares inched down on Thursday, with heavyweight mining stocks extending sharp losses into a third session as iron ore prices continued to slide on worries over Chinese demand.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=CJR9iSJg6oA:ppCzoVQ2w2w:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=CJR9iSJg6oA:ppCzoVQ2w2w:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=CJR9iSJg6oA:ppCzoVQ2w2w:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=CJR9iSJg6oA:ppCzoVQ2w2w:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=CJR9iSJg6oA:ppCzoVQ2w2w:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/CJR9iSJg6oA" height="1" width="1" alt=""></div> Posted by Reuters