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  2. How to Clean All the Rings in Your Jewelry Box, From Silver ...

    www.aol.com/clean-rings-jewelry-box-silver...

    Be it a classic gold signet band, a sparkling diamond engagement ring, or a fun piece of costume jewelry, rings have a lot to say about the wearer and their personal style. Keeping them clean and ...

  3. 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.

  4. Here's How to Clean Your Engagement Ring at Home - AOL

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  5. 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.

  6. Piranha solution - Wikipedia

    en.wikipedia.org/wiki/Piranha_solution

    Surfaces must be reasonably clean and completely free of organic solvents from previous washing steps before coming into contact with the solution. Piranha solution cleans by decomposing organic contaminants, and a large amount of contaminant will cause violent bubbling and a release of gas that can cause an explosion.

  7. Conservation and restoration of silver objects - Wikipedia

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

    Proper handling, storage, and treatment can help prevent deterioration of silver objects. [3] Metals are best conserved when stored in an even and low humidity atmosphere, ideally at 40% relative humidity or lower. [5] Silver tends to corrode easily when stored in damp, moist locations such as a basement because it will accelerate tarnishing.

  8. Are lab-grown diamonds 'worthless'? Experts weigh in as ... - AOL

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    “The energy needed to grow lab-grown [diamonds] is enormous, so your lab-grown diamonds are only as clean as that energy source.” There have been ethical issues with diamond mining in the past.

  9. Aqua regia - Wikipedia

    en.wikipedia.org/wiki/Aqua_regia

    As a practical matter, when platinum group metals are purified through dissolution in aqua regia, gold (commonly associated with PGMs) is precipitated by treatment with iron(II) chloride. Platinum in the filtrate, as hexachloroplatinate(IV), is converted to ammonium hexachloroplatinate by the addition of ammonium chloride. This ammonium salt is ...