** Rokeby Resources RKB.AX soars as much as 25% to A$0.005; marks biggest intraday pct gain since October 23
** Speciality miner finds high-grade gold-antimony targets at Hurricane Project in northern Queensland
** About 10.4 mln shares traded, 3.1x the 30-day avg
** YTD, RKB falls 10%
(Reporting by Ananya Verma in Bengaluru)
((ananya.verma@thomsonreuters.com;))