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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. What is 9K gold, and what should you look for in this type of ...

   www.aol.com/9k-gold-look-type-vintage-223804020.html

   The post What is 9K gold, and what should you look for in this type of vintage jewelry? appeared first on In The Know. This jewelry TikTok creator breaks it all down.

4. 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 ...

5. Jewelry hygiene - Wikipedia

   en.wikipedia.org/wiki/Jewelry_hygiene

   The only exception is a plain gold wedding band. Jewelry hygiene expert David Bellman reacted to the announcement a few days later stating "This new policy change in long over due; in 2014, 1 in 6 Americans experienced some form of food poisoning and based on our research, contaminated jewelry is clearly playing a meaningful role."

6. A Touch of Tarnish at IAMGOLD

   www.aol.com/news/2012-11-16-a-touch-of-tarnish...

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7. 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 ...

8. Body piercing materials - Wikipedia

   en.wikipedia.org/wiki/Body_piercing_materials

   As said, gold jewelry should only be used in healing piercings if it is nickel free or palladium based. Allergy to gold is uncommon but it does exist, and then mostly from white gold. [9] [10] In some extreme cases, the copper in the jewelry can tarnish and cause greenish discoloring of the tissue. Gold can become discolored from autoclaving ...

9. Thieves in terrible disguises steal $1.7M in jewelry - AOL

   www.aol.com/thieves-terrible-disguises-steal-1...

   A pair of accused jewel thieves were caught lounging at a four-star Miami Beach hotel just days after police said they walked off with $1.7 million in valuables from a Tennessee retailer.