Jan 07, 2013 What are fine metals? Ok, this is a bit of a test to get things going. Since I mainly work with silver and gold, it should make sense for me to talk a bit about silver and gold. Here goes; Silver in its purest form (refined) is also called "Fine" silver. It can be used as such but rarely is. Enamelling on silver is one exception. When we talk about silver in general, we are usually referring to "Sterling Silver" which, by industry standards is 925 parts pure (fine) silver , and 75 parts pure copper. thus we often see silver stamped as ".925". It can also be stamped as " Sterling Silver" and very rarely "SS" ( not to be confused with stainless steel) . It's all the same.