U.S. gold prices edged 50 cents lower Tuesday, adding to its May losses. Silver rallied above $38 an ounce on the day, but gave away more than $10 in value during the month.
In fact, all precious metals declined in May. Silver led, dropping 21.1 percent. Other metals retreated at a slower pace with registered losses of 1.3 percent for gold, 1.7 percent for platinum and 1.4 percent for palladium [...]