** Shares of St George Mining Ltd SGQ.AX rise as much as
52.5% to A$0.061, hit their highest level since April 14
** The miner says high-grade lithium mineralisation
confirmed from first assay of rock chip samples from co's Mt
Alexander Project located in Western Australia
** Adds that maiden lithium drilling is scheduled to start
in late October/early November
** SGQ marks best intraday session since March 14
** More than 72 mln shares change hands, compared with the
30-day average volume of about 2.5 mln shares
** St George stock down 35.5% this year, as of last close
(Reporting by Jaskiran Singh in Bengaluru)
((Jaskiran.Singh@thomsonreuters.com;))