A senior refinery technician pours liquid gold to form gold dore bars at Newmont Mining's Carlin gold...
Senior refinery technician Vincente Sandoval pours liquid gold to form gold dore bars at Newmont Mining's Carlin gold mine operation near Elko, Nevada May 21, 2014. The dore bars contain approximately 90 percent gold, 8 percent silver and 2 percent trace material. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS COMMODITIES)