** Shares of Tyranna Resources Ltd TYX.AX rise as much as
15% to A$0.023, set for best day since Feb. 2, if gains hold
** Mineral explorer announces test results for bulk sample
of lithium pegmatite from Muvero Prospect at co's Namibe Lithium
Project in Africa
** Says test results have shown exceptional lithium
concentrate quality
** Co's shares hit highest since March 1
** About 8.8 mln shares change hand compared to 30-day
average trading volume of 6.4 mln shares
** Shares are down 16.7% YTD as of last close
(Reporting by John Biju in Bengaluru)
((John.Biju@thomsonreuters.com;))