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  2. 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

  3. Jewellery cleaning - Wikipedia

    en.wikipedia.org/wiki/Jewellery_cleaning

    Jewelry with gemstones such as diamonds or sapphires can be cleaned at home as well using mild soap and warm water. However, gemstones such as opals and pearls should be done professionally. Another issue is the age of jewelry, as certain materials or build strategies of older jewelry (such as from the Georgian era ) may have restrictions, such ...

  4. Sterling silver - Wikipedia

    en.wikipedia.org/wiki/Sterling_silver

    Fine silver, which is 99.9% pure silver, is relatively soft, so silver is usually alloyed with copper to increase its hardness and strength.Sterling silver is prone to tarnishing, [1] and elements other than copper can be used in alloys to reduce tarnishing, as well as casting porosity and firescale.

  5. Small jewelry brand worn by Doja Cat, K-pop stars accuses ...

    www.aol.com/nyc-jewelry-brand-accuses-forever...

    OHT called out Forever 21 in an Instagram post, accusing the fast-fashion giant of "stealing" its Pearl Cross Necklace design. Small jewelry brand worn by Doja Cat, K-pop stars accuses Forever 21 ...

  6. Shein and Forever 21 are combining forces to expand their ...

    www.aol.com/finance/shein-forever-21-combining...

    Shein and Forever 21 are joining forces in a deal that will expand their reach and influence in the retail world. The union is a win for the Asian and American fast fashion leaders as the two ...

  7. Silver sulfide - Wikipedia

    en.wikipedia.org/wiki/Silver_sulfide

    It constitutes the tarnish that forms over time on silverware and other silver objects. Silver sulfide is insoluble in most solvents, but is degraded by strong acids. Silver sulfide is a network solid made up of silver (electronegativity of 1.98) and sulfur (electronegativity of 2.58) where the bonds have low ionic character (approximately 10%).

  8. Millennials’ fast-fashion favorite Forever 21 can’t keep up ...

    www.aol.com/finance/millennials-fast-fashion...

    Formerly a fierce competitor of mall stalwarts H&M and Zara, Forever 21 now is at risk of being gobbled up by the next generation of fast-fashion giants like Shein and Temu, which have made a name ...

  9. Tarnish - Wikipedia

    en.wikipedia.org/wiki/Tarnish

    Tarnish does not always result from the sole effects of oxygen in the air. For example, silver needs hydrogen sulfide to tarnish, although it may tarnish with oxygen over time. It often appears as a dull, gray or black film or coating over metal. Tarnish is a surface phenomenon that is self-limiting, unlike rust. Only the top few layers of the ...

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