(CNN)The price of gold has slipped from highs of around $1900 per troy ounce in 2011 to below $1200 this year, and Ghana -- which depends to a large extent on the export of the metal and other commodities -- has suffered. The Obuasi gold mine has been in operation since 1897, when it was started by three Ghanaian merchants who brought in the heavy equipment needed to extract gold....
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