Gold futures on Friday finished the session and the week higher as Wall Street's worries persisted about a potential trade war between China and the U.S. June gold GCM8, +0.47% finished the session up $7.60, or 0.6%, at $1,336.10 an ounce, the metal finished up 0.9% for the week, based on Friday's close for the most-active contract. Gold also gained as the dollar, which influences trade in the commodity priced in the currency, was 0.4% lower at 90.09, as gauged by the ICE U.S. Dollar Index DXY, -0.33%