NEW YORK, March 12 (UPI) -- Gold prices lost ground Monday as stocks on Wall Street were mixed and the dollar index was flat, down 0.1 percent. On the Comex division of the New York Mercantile Exchange, gold prices shed $11.70 to reach $1,699.80 per troy ounce. Silver lost 79 cents to $33.41. The euro fell to $1.3154 from $1.3155. Against the yen, the dollar rose to 82.26 yen from 82.23 yen. The British pound fell to $1.5641 from Friday's $1.5642. The U.S. dollar fell to 7.7579 Hong Kong dollars from 7.7581 HKD. The U.S. greenback rose to 0.9925 Canadian dollars from 0.9903 Canadian.