** Shares of Meeka Metals Ltd MEK.AX rise as much as 5.8%
to A$0.073 - set to mark best day since Nov 18 if gains hold
** Gold and rare earths miner says a study of Circle Valley
project in Western Australia shows that 90.4% of the valuable
rare earth elements can be recovered in a -20µm size fraction
** Says rare earth grade increased by up to 91% by rejecting
the coarse fraction with the grade increase evenly distributed
between light, heavy and magnet rare earth elements
** Stock hits its highest since Nov 24
** Stock up 68.3% this year, as of last close
(Reporting by Poonam Behura in Bengaluru)
((Poonam.Behura@thomsonreuters.com;))