Sterling silver
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Sterling
silver is an alloy of silver containing 92.5% by weight of silver
and 7.5% by weight of other metals, usually copper.
The sterling silver standard has a minimum millesimal fineness of 925.
Fine silver, for example 99.9% pure silver, is generally too soft for producing functional objects; therefore, the silver is usually alloyed with copper to give it strength while preserving the ductility and appearance of the precious metal. Other metals can replace the copper, usually with the intention of improving various properties of the basic sterling alloy such as reducing casting porosity, eliminating firescale, and increasing resistance to tarnish
Argentium
sterling silver
From Wikipedia, the free
encyclopedia
Argentium silver 935 is a modern sterling silver alloy, containing 93.5% silver. The
traditional sterling alloy (92.5% silver + 7.5% copper) is modified by removing
some of the copper and adding the metalloid germanium.