By Claudia Assis
SAN FRANCISCO (MarketWatch) -- Gold futures reversed higher Wednesday, taking silver along for the ride. Gold for August delivery added $2.40, or 0.2%, to $1,215.90 an ounce. Silver for September delivery rose 16 cents, or 0.9%, to $18.41 an ounce. Gold and silver started their day moderately in the red but a weakening dollar gave them a leg up.
