Nordic gold (Swedish: nordiskt guld) is the gold-coloured copper alloy from which many coins are made. It had been in use for a number of coins in many currencies, most notably in euro 50, 20, and 10 cents, in the Swedish 5 and 10 kronor coins, the latter of which it was originally developed for, as well as the Polish 2 złote commemorative coins. Its composition is 89% copper, 5% aluminium, 5% zinc, and 1% tin.
Being a copper alloy, it contains no gold. Its colour and weight are unlike pure gold. It is non-allergenic; its other advantages include antimycotic and weak antimicrobial (especially after abrasion) attributes, and resistance to tarnishing.
- Predecimal.com. "The selection of the alloy for the New Euro Coins". Retrieved 2007-05-29.
- "Nordic Gold in our pockets". scda.com. Scandinavian Copper Development Association. Archived from the original on July 23, 2012. Retrieved May 12, 2015.
- Gizmology.net. "Notes on metals". Retrieved 2015-01-16.
- Quaranta, Davide; et al. (January 2011). "Mechanisms of Contact-Mediated Killing of Yeast Cells on Dry Metallic Copper Surfaces". Appl. Environ. Microbiol. American Society for Microbiology. 77 (2): 416–426. doi:10.1128/AEM.01704-10. PMC 3020553. PMID 21097600.
- Ha, H.; et al. (2011). "Tarnishing and Cu Ion release In Selected Copper-Base Alloys: Implications Towards Anti-Microbial Functionality". Abstract #1797, 220th ECS Meeting. The Electrochemical Society. Abstract #1797. Retrieved 2 February 2014.