Images Of Gold At Gold Expo [Getty Images]

A gold nugget is displayed at the Gold Expo held in J. Front Retailing Co.'s Matsuzakaya department store in Tokyo, Japan on Friday, April 12, 2013. Hedge funds and other speculators added to bullish gold bets as the metal slumped into a bearmarket and Goldman Sachs Group Inc. warned the retreat is accelerating after the longest rally in nine decades. Photographer: Yuriko Nakao/Bloomberg via Getty Images

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