Platinum is a�dense, highly unreactive,�precious, grey-white�transition metal and is one of the�rarer elements in Earth's crust. It has remarkable resistance to�corrosion, even at high temperatures, and is therefore considered a�noble metal.�

Because of its scarcity in Earth's crust, only a few hundred�tonnes�are produced annually, and given its important uses, it is highly valuable and is a major�precious metal commodity.