Gold and silver prices slipped on Thursday, February 26, as investors stayed cautious ahead of US-Iran nuclear talks and expectations that the US Fed will keep rates unchanged. On Comex, April gold futures fell $72 to an intraday low of $5,154 per troy ounce, while March silver futures dropped $4.90 to $86.13, after hitting a three-week high of $91.3 in the previous session.