Rhodium
Rhodium is named from the Greek rhodon, rose and was first recognized as a distinct element in 1803. Rhodium occurs native with other platinum metals in river sands of the Urals and in North and South America. It is also found with other platinum metals in the Sudbury, Ontario copper-nickel sulfide ores. The metal is silvery-white and its major use is as an alloying agent to harden platinum and palladium. Rhodium is also used for jewelry, for decoration and as a catalyst.