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"The words "silver" and "sterling silver" describe a product that contains 92.5% pure silver. Silver products sometimes may be marked 925, which means that 925 parts per thousand are pure silver. Some jewelry described as "silver plate" has a layer of silver applied to a base metal. "Coin silver" is used for compounds that contain 90% pure silver.
Sterling silver. Sterling silver is an alloy composed by weight of 92.5% silver and 7.5% other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. Fine silver, which is 99.9% pure silver, is relatively soft, so silver is usually alloyed with copper to increase its hardness and strength.
A hallmark is an official mark or series of marks struck on items made of metal, mostly to certify the content of noble metals —such as platinum, gold, silver and in some nations, palladium. In a more general sense, the term hallmark is used to refer to any standard of quality.
For silver, you’ll find 925, 800, silver or sterling. Here are a few key takeaways to help you interpret some jewelry stamps: Sterling silver with a 925 stamp is 92.5% silver.
Silver standards refer to the standards of millesimal fineness for the silver alloy used in the manufacture or crafting of silver objects. This list is organized from highest to lowest millesimal fineness, or purity of the silver. Fine silver has a millesimal fineness of 999. Also called pure silver, or three nines fine, fine silver contains 99 ...
Silver overlay is an electroplated coating of silver on a non-conductive surface such as porcelain or glass. Most techniques used to create silver overlay involve the use of special flux which contains silver and turpentine oil. This is then painted on the glass ornament as a design. After the painting is complete, the entire ornament is fired ...