** Australian gold stocks .AXGD rise as much as 3.3% to their highest level since March 12
** Sub-index on track for second consecutive session of gains
** Gold prices gained 2% on Tuesday as the U.S. dollar weakened, while hopes of a resumption in U.S.-Iran talks also supported prices by easing inflation concerns GOL/
** Gold miners Northern Star Resources NST.AX and Evolution Mining EVN.AX up as much as 3.5% and 8.6%, respectively
** YTD, sub-index up 1.8%, including the session's move
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com))