Gold prices dropped slightly Tuesday, shedding 90 cents to settle at $1,692.40 an ounce on the Comex division of the New York Mercantile Exchange. Silver added 2 cents to close at $32.20 an ounce. Against the dollar, the euro was $1.3322 from Friday\'s $1.3313. The dollar dropped against the yen, hitting 88.78 yen from 89.62 yen.