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2. 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 ...

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

   www.aol.com/clean-silver-jewelry-way-keep...

   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 ...

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

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

   Store each piece of silver jewelry in its own anti-tarnish bag in a cool, dry spot. Tuck a piece of chalk in an anti-tarnish bag to help absorb moisture from the air.

5. Glamorous gold jewelry staples you can wear on repeat — all ...

   www.aol.com/lifestyle/glamorous-gold-jewelry...

   Wear it alone or layered with your other favorite pieces — there's no wrong way to style this 14k gold-plated, tarnish-resistant necklace. "You just can’t beat the price of this necklace.

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. 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

8. 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 ...

9. Platinum sterling - Wikipedia

   en.wikipedia.org/wiki/Platinum_sterling

   The platinum is used to replace at least some of the copper present in a typical sterling silver alloy, which provides a greater light reflectivity (by refining the grain structure) and resistance to tarnish (thought to be caused by oxidation of copper) than standard sterling silver. Platinum Sterling is a cheaper alternative to white gold.