Pop Quiz: How Much Gold Is Really In a Gold Medal?

July 31 (Bloomberg) -- In today's "Off The Charts," Bloomberg's Scarlet Fu breaks down the make-up of the medals at the 2012 Olympic games in London and their intrinsic value. For the first time since 1912, the gold medals are made up of various metals and contain only 1.3 percent gold. She speaks on Bloomberg Television's "Market Makers."

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