Question

How is the purity of silver expressed?

Answer 1

1. The purity of silver is expressed in terms of its “fineness,” which indicates the amount of silver present in 1000 parts of the alloy. For example, “915 fine silver” means the alloy contains 91.5% silver and 8.5% other metals, commonly copper. 
2. Fineness is a precise measure and commonly used in jewelry and silverware industries to denote silver content.
3. It helps in distinguishing between different grades of silver alloys. 
4. This expression of purity is particularly important because pure silver is too soft for many applications and is generally alloyed with other metals to improve its durability while maintaining high silver content specified by the fineness value.