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  2. Sterling silver - Wikipedia

    en.wikipedia.org/wiki/Sterling_silver

    From about 1840 to 1940 in the United States and Europe, sterling silver cutlery (US: 'flatware') became de rigueur when setting a proper table. There was a marked increase in the number of silver companies that emerged during that period. The height of the silver craze was during the 50-year period from 1870 to 1920.

  3. This Is Why Your Skin Turns Green After Wearing Certain ... - AOL

    www.aol.com/why-skin-turns-green-wearing...

    The good news: there are still ways to wear your favorite pieces of jewelry. The post This Is Why Your Skin Turns Green After Wearing Certain Jewelry appeared first on Reader's Digest.

  4. Silver hallmarks - Wikipedia

    en.wikipedia.org/wiki/Silver_hallmarks

    "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 jewellery described as "silver plate" has a layer of silver applied to a base metal. "Coin silver" is used for compounds that contain 90% pure ...

  5. Fineness - Wikipedia

    en.wikipedia.org/wiki/Fineness

    For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 900 ‰ silver and 100 ‰ copper, by mass. Sterling silver contains 925silver and 75 ‰ of other metals, usually copper, by mass.

  6. Silver - Wikipedia

    en.wikipedia.org/wiki/Silver

    Like copper, silver reacts with sulfur and its compounds; in their presence, silver tarnishes in air to form the black silver sulfide (copper forms the green sulfate instead, while gold does not react). While silver is not attacked by non-oxidising acids, the metal dissolves readily in hot concentrated sulfuric acid, as well as dilute or ...

  7. Silver standards - Wikipedia

    en.wikipedia.org/wiki/Silver_standards

    The Scandinavian silver alloy contains 83% pure silver and 17% copper or other metals. [10] German silver will be marked with a millesimal fineness of 800 or 835 (80% or 83.5% pure silver). Any items simply marked "German silver", "nickel silver" or "Alpaca" have no silver content at all, but are mere alloys of other base metals. [citation needed]

  8. Verdigris - Wikipedia

    en.wikipedia.org/wiki/Verdigris

    The Statue of Liberty, showing advanced patination; verdigris is responsible for the statue's iconic green colour.. Verdigris (/ ˈ v ɜːr d ɪ ɡ r iː (s)/) [1] is a common name for any of a variety of somewhat toxic [2] [3] [4] copper salts of acetic acid, which range in colour from green to a bluish-green depending on their chemical composition.

  9. Silver (color) - Wikipedia

    en.wikipedia.org/wiki/Silver_(color)

    The Silver Cord is a 1926 play by Sidney Howard about the emotional tie between a mother and a son, and the term "silver cord" is sometimes used to represent this tie. [10] Silver Child is the first in The Silver Sequence is a fantasy brook trilogy by Cliff McNish consisting of Silver Child, Silver City and Silver World.