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Fine Jewelry University Articles matching: “Stamp scratched off”
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Fine Jewelry University
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Gem in the Spotlight: Topaz
… lab grown diamonds . A thin, multi-colored film is bonded on the surface of colorless topaz to create all the colors you see in Mystic Topaz. These enhanced topaz pieces must be handled with special care because the coating can be scratched and the gem ruined very easily. Mystic topaz comes in virtually any color from sunset orange, to violet, to green. These coatings can allow topaz to be any color of your preference. Topaz itself is a hard gemstone with a Mohs hardness of…
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Gem in the Spotlight: Pearl
… extra care to continue looking their best. With a Mohs hardness of 2.5, pearls are among the softest (most easily scratched) materials commonly used in jewelry. Follow these simple rules to help your pearls last for generations. Last on, …) for cleaning because this can weaken the silk thread they are strung on over time. Store Safely: Pearls can be scratched by sharp objects like the metal and gems in other jewelry. They can also stretch out if they are hung for storage. …
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Gem in the Spotlight: Quartz
… watches are so accurate, oftentimes several orders of magnitude more accurate than even the most precise mechanical watches. Triboluminescence is another amazing physical property of quartz. When quartz is broken, pulled apart, or scratched it releases small amounts of static electricity as light. If you take two pieces of quartz and rub them together in a dark room, they create a dim light which is often called cold fire, as it creates enough light to see, but no heat. …
