** Shares of Rarex Ltd REE.AX rise as much as 26.3% to
A$0.120, marking their biggest intraday pct gain since July 19
** Rare earths explorer says drilling at its Cummins Range
Rare Earths Project in Western Australia revealed exceptional
high-grade primary mineralization urn:newsml:reuters.com:*:nASX4vDxWj
** Stock hits highest since Sept. 3
** Over 11 mln shares change hands, vs 30-day average volume
of ~1.6 mln
** Stock up 50% YTD, as of last close
(Reporting by Arundhati Dutta in Bengaluru)
((Arundhati.Dutta@thomsonreuters.com;))