** Shares of Marmota MEU.AX rise as much as 17% to A$0.055, their highest levels since Feb 8, 2024
** Stock posts its biggest intraday pct gain since Oct 21, 2024
** The mineral explorer says assays found high heavy mineral concentrate percentages for titanium mineralisation at Muckanippie in South Australia
** About 7.5 mln shares change hands, 6.3 times the 30-day average volume of 1.2 mln shares
** Marmota stock lost 9.3% in 2024
(Reporting by Jasmeen Ara Shaikh in Bengaluru)
((Jasmeenaraislam.shaikh@thomsonreuters.com))