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  2. Jewellery cleaning - Wikipedia

    en.wikipedia.org/wiki/Jewellery_cleaning

    Keeping your jewelry clean gives the gemstone(s) a good shiny appearance by removing dirt and grease (among others) from loosening them. Dirty jewelry may also cause skin irritation. [1] A professional cleaning may take anywhere from a few minutes to a few days depending on the circumstances.

  3. How to Clean Tarnished Silver, According to Cleaning Experts

    www.aol.com/clean-tarnished-silver-according...

    The easiest and most effective way to make silver sparkle is with a targeted silver polish like Good Housekeeping Seal star Weiman Silver Polish. Follow the product directions or this step-by-step ...

  4. Conservation and restoration of silver objects - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Whether silver plating or pure silver, the composite of the metal will tarnish when exposed to air and sulfur. Tarnish is a chemical reaction on the surface of metal (copper, brass, silver, etc.) and causes a layer of corrosion. In the case of silver tarnish, the silver combines with sulfur and forms silver sulfide (Ag 2 S), which is

  5. Here’s How to Clean Silver Jewelry the Right Way (And ... - AOL

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    Below, we tapped two experts for everything you need to know about how to clean silver jewelry like a pro, plus some tips on how to pre. Silver jewelry is stunning, always trendy and versatile ...

  6. Gold plating - Wikipedia

    en.wikipedia.org/wiki/Gold_plating

    Gold plated - gold layer thickness greater than or equal to 0.5 micron; Heavy gold plated / Vermeil - gold layer thickness greater than or equal to 2.5 micron; Gold plated silver jewellery can still tarnish as the silver atoms diffuse into the gold layer, causing slow gradual fading of its color and eventually causing tarnishing of the surface ...

  7. Gold-filled jewelry - Wikipedia

    en.wikipedia.org/wiki/Gold-filled_jewelry

    The Federal Trade Commission allows the use of the terms "rolled gold plate," "R.G.P" or "gold overlay" on items with lower thicknesses of gold than are required for "gold-filled." [ 3 ] An example would be an item stamped as " 1 ⁄ 40 10kt RGP" meaning that the object is plated with 10kt gold at a thickness that makes weight of the plated ...

  8. How To Clean Copper For Tarnish-Free Shine - AOL

    www.aol.com/clean-copper-tarnish-free-shine...

    The cornmeal helps make it easer to spread on an item, and the lemon juice and salt do the heavy lifting. Spread, let sit, and clean off with warm water and a soft cloth. How To Clean Copper With ...

  9. Tarnish - Wikipedia

    en.wikipedia.org/wiki/Tarnish

    Tarnish is a product of a chemical reaction between a metal and a nonmetal compound, especially oxygen and sulfur dioxide. It is usually a metal oxide, the product of oxidation; sometimes it is a metal sulfide. The metal oxide sometimes reacts with water to make the hydroxide, or with carbon dioxide to make the carbonate. It is a chemical change.

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