** Shares of mineral explorer Riversgold Ltd RGL.AX jump
as much as 26.7% to A$0.038, its best intraday gain since May 18
** Company acquires eight tenements highly prospective for
lithium in the Western Australian goldfields urn:newsml:reuters.com:*:nASX3m0Whh
** Says the tenements are "highly prospective addition"
** Says exploration will focus on discovery of large
lithium-caesium-tantalum system
** Shares hit their highest since June 15
** More than 15 mln shares change hands, 5.8 times the
30-day average of 2.6 mln shares
** As of last close, shares up 94.8% this year
(Reporting by Echha Jain in Bengaluru)
((Echha.jain@thomsonreuters.com))