I found this article to be very informative on the discovery of Argentium Silver and the different types.
The Argentium Revolution
Argentium International has implemented a continuous research and development program to better understand the properties of Argentium silver alloys and learn how to optimize these properties for different applications. Today, on The Studio, Charles Allenden tells us about the fascinating evolution of Argentium – more reason to try this exceptional silver alloy.
Read our latest post at: http://riograndeblog.com/2012/07/the-argentium-revolution/