** Shares of American Rare Earths Ltd ARR.AX rise as much
as 5.1% to A$0.205 - set to mark best day since Dec 5, if gains
hold
** Rare earths explorer says metallurgical tests at Halleck
Creek rare earths project in the United States indicate low
mining, processing costs
** Says the tests show viable pathway to mine rare earths at
the project using its conventional technology
** Stock up 18.2% this year, as of last close
(Reporting by Poonam Behura in Bengaluru)
((Poonam.Behura@thomsonreuters.com;))