Palladium:

Palladium:One of the platinum group metals, palladium is used extensively for pollution control in automotive catalytic converters. Palladium is also essential to the jewelry industry. It is one of the three most used metals (along with nickel and silver) to be alloyed with gold to produce "white gold." Palladium is also used in dentistry, watch making, and in the production of surgical instruments.   Palladium bullion ... [more]