LAKEWOOD, May 12, 2014 (GLOBE NEWSWIRE via COMTEX) Pershing Gold Corporation (OTCQB:PGLC) ( Pershing Gold or the Company ) is pleased to announce the preliminary results of column leach tests on gold-bearing samples from the Relief Canyon Mine property in Pershing County, Nevada. These results show higher gold recoveries than the previous mine operators achieved and also indicate that this mineralized material leaches quickly. A column comprised of a master composite of drill core samples that was designed to simulate the blend of the different mineralized materials to be leached in the future at Relief Canyon yielded 79.2% gold recovery in 71 days of leaching. The Company achieved higher recoveries from columns built with limestone breccias and clay-matrix breccias, the two rock types that contain most of the gold mineralization in the Main Zone of the Relief Canyon deposit. A column of the limestone breccia yielded 85.7% gold recovery after 70 days of leaching. Two columns of the cl
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