Necklace Pendant Size: 1.5 inch Length x 0.75 inch Width, Approx. 38 x 19mm
What is 925 Sterling Silver?
From Wikipedia, the free encyclopedia:
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 (99.9% pure) is generally too soft for producing
functional objects; therefore, the silver is usually alloyed with copper to give
it strength, while at the same time preserving the ductility and beauty of the
precious metal. Other metals can replace the copper, usually with the intent to
improve various properties of the basic sterling alloy such as reducing casting
porosity, eliminating firescale, and increasing resistance to tarnish. These
replacement metals include germanium, zinc and platinum, as well as a variety of
other additives, including silicon and boron. A number of alloys, such as
Argentium sterling silver have appeared in recent years, formulated to lessen
firescale or to inhibit tarnish, and this has sparked heavy competition among
the various manufacturers, who are rushing to make claims of having the best
formulation. However, no one alloy has emerged to replace copper as the industry
standard, and alloy development is a very active area
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