Nordic gold

Nordic gold (Swedish: nordiskt guld) is a golden-coloured copper alloy which is used primarily to mint coins. It contains no gold despite the name, and is a type of aluminium bronze made with copper, aluminium, zinc, and tin. It was originally developed in Finland for Swedish coinage to be golden-coloured, tarnish-resistant, malleable, durable over time, and hypoallergenic. It was later and more notably used in some Euro coins, as well as other countries, and has been researched for other purposes.