Gold prices are modestly lower in early U.S. trading Tuesday, pressured by a firmer U.S. dollar index and weaker crude oil prices. A recent deterioration in the chart postures for gold and silver markets have prompted some new technical selling. April Comex gold was last down $4.00 at $1,237.50 an ounce. March Comex silver last traded down $0.16 at $16.91 an ounce.
