** Shares of Red Mountain Mining RMX.AX up 11%.1 at A$0.01
** Stock hits highest level since March 3
** The mineral explorer identifies historical antimony at its Armidale Antimony-Gold Project in New South Wales (NSW)
** About 9 million shares change hands by 0125 GMT, 18.3 times the 30-day average volume of shares
** Stock up 11.1% YTD
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com;))