Gold and silver prices opened lower on the Multi Commodity Exchange (MCX) on Tuesday after a rebound in oil prices following a fresh US attack on Iran raised inflation fears, while investors awaited the outcome of the US midterm elections later in the day.In the domestic market, MCX silver futures for December 2026 delivery were down by Rs 4,300 to Rs 1,83,779 per kg. Gold futures for December 2026 delivery fell by Rs 1,400 to Rs 1,38,823 per 10 grams.Oil prices dropped more than 7% on Monday after Tehran said discussions with the United States to end their eight-month war were still underway.