Platinum
Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term "platino", meaning "little silver".
Platinum as an investment
Platinum is traded on the New York Mercantile Exchange (NYMEX) and the London Platinum and Palladium Market. To be saleable on most commodity markets, platinum ingots must be assayed and hallmarked in a manner similar to the way gold and silver are.