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2. Jewellery cleaning - Wikipedia

   en.wikipedia.org/wiki/Jewellery_cleaning

   Keeping your jewelry clean helps to ensure that the gemstone (s) keep a good appearance and prevents 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. The cleaner would first inspect the ...

3. 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

4. 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 ...

5. 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.

6. Gold-filled jewelry - Wikipedia

   en.wikipedia.org/wiki/Gold-filled_jewelry

   Gold-filled jewelry. Gold-filled is a type of composite material. Composites are formed from two or more constituent materials with different properties that, when combined, create a new material with enhanced properties. [1] Gold-filled material is made by bonding a layer of gold alloy to a base metal core (typically brass, but sometimes ...

7. Jewelry hygiene - Wikipedia

   en.wikipedia.org/wiki/Jewelry_hygiene

   Jewelry hygiene is an area of study focusing on sanitary practices and habits relating to jewelry in an effort to understand jewelry's effect on hand hygiene. There are four key elements to optimally sanitizing jewelry: steam or hot water, water pressure and an antibacterial cleaning agent. Hand hygiene is particularly acute for health workers ...