** Locksley Resources shares LKY.AX surge 47% to record A$0.53, third straight session of gains
** Gold-copper miner's biggest intraday jump since June 26 follows Sept 10 antimony purchase deal with EV Resources EVR.AX; LKY surged nearly 16%
** Co filed claim to double land holdings in California for critical mineral exploration on Sept 11; stock ended up 22%
** S&P/ASX 200 gold sub-index .AXGD up 1.4% on higher gold prices
** Around 31 mln shares traded so far, around 2x 30-day average volume
** LKY last up 36.1%, bringing YTD gains to 2782.4%
(Reporting by Shruti Agarwal in Bengaluru)
((Shruti.Agarwal@thomsonreuters.com))