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Fine Jewelry University Articles matching: “blue topaz tenis bracelet”

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Fine Jewelry University (Show All FJU Articles)

  1. Alternative metal wedding band options for men

    Alternative Metals for Men’s Jewelry

    … frame of reference, cobalt rings come in around 7-8 on the Mohs hardness scale which is about the same as quartz or topaz but softer than tungsten or sapphire. Like most alternative metals, cobalt chrome bands are hypoallergenic and … pieces with more nickel Cobalt Looks like white gold or platinum, hypoallergenic Cut in 2 places 7-8, quartz or topaz Scratches more easily than others Carbon Fiber Light weight, modern look Cut NA Can feel “too light” Ceramic Unique …

  2. Group of loose spinel gemstones with finished jewelry

    Gem in the Spotlight: Spinel

    … 8 and good toughness spinel is a great choice for all forms of jewelry. We recommend occasional wear for rings and bracelets, but earrings and pendants are suitable for daily wear. Spinel can come in virtually any color of the rainbow which …like with all precious stones, it should be treated and stored with care. Its Mohs hardness of 8 puts it on par with Topaz. It’s softer than diamond or sapphire but harder than quartz, tourmaline, and peridot. With proper care there’s no …

  3. A group of yellow gold chains of different kinds of a blue background

    Types of Necklace Chains

    …, what kind of chain is best for you? In this article we’ll introduce you to the staggering variety of necklace (and bracelet) chains that are available right now in the jewelry world. Each one has its own unique style, strengths, and … to support the weight of a pendant during daily wear and tear. Larger link cable chains make a good base for charm bracelets. PROS Wearability – The simple design of cable chains makes them very flexible and nearly impossible to kink. …

  4. Group of loose amethyst gems emerald cut trillion and oval

    Gem in the Spotlight: Amethyst

    … deposits in other countries such as Russia, the United States, and Canada. Amethyst is known for its durability with a Mohs hardness rating of 7. For reference, amethyst is roughly as hard as tourmaline, softer than sapphire and topaz, and harder than opal and tanzanite. This makes it a durable gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals which means that it can withstand daily wear and tear. Amethyst has the same …

  5. Morganite is a beautiful soft-pink gemstone

    Gem in the Spotlight: Morganite

    …. It is entirely appropriate for everyday wear, and it can be worn as rings, pendants, earrings, necklaces, bracelets, pins, brooches, or whatever else you can think of. Morganite is considered very affordable, especially allowing for its … is rated as excellent. Its hardness is 7.5 – 8.0 on the Mohs hardness scale which is comparable to emerald, topaz, and spinel. Its refractive index is 1.560 – 1.600, and its specific gravity is 2.67 – 2.90. These characteristics help …

  6. Peridot is a bright yellow-green gemstone

    Gem in the Spotlight: Peridot

    …it was believed that they intensified the effects of the drug. Gemologically speaking, Peridot is the gem variety of Olivine. It has a Moh’s hardness of 6.5 to 7 which makes it a little harder than Moonstone and a little softer than Topaz. Care should be taken to protect peridot from scratches, sharp blows, household chemicals and extreme temperature changes. Do not use a home ultrasonic machine for cleaning. Instead, use warm soapy water and a tooth brush for at-home …

  7. Collection of loose and mounted quartz gems of various types

    Gem in the Spotlight: Quartz

    … colors Bloodstone Green jasper dotted with bright red spots Carnelian Reddish orange chalcedony Gemology of Quartz Quartz is known for its durability with a Mohs hardness rating of 7 (harder than opal and peridot but softer than topaz or sapphire). This makes it a fairly hard gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals, which means that it can withstand daily wear and tear very well. All quartz has the same …

  8. A group of alexandrite jewelyr and loose gems shown in different light to demonstrate color change

    Gem in the Spotlight: Alexandrite

    … most wavelengths of light very well, only transmitting green and red light. This means that depending on the light source the stone will reflect more of the accent colors of light. Since fluorescent light has a stronger greenish-blue component, the stone appears greener. Under candlelight, which has a much stronger red/orange component, the stone will appear redder. Alexandrite has a refractive index of 1.746-1.755 with an average birefringence of .010. It has a …

  9. Single white round pearl on white background

    Gem in the Spotlight: Pearl

    … Pearls: Also known as black pearls, Tahitian pearls are a type of saltwater pearl that are grown primarily in French Polynesia. They are known for their dark, rich colors, which range from dark green and gray to deep shades of blue and black. Tahitian pearls are generally large with an average size of 9mm to 18mm, and they commonly have baroque or irregular shapes. South Sea Pearls: Only a small percentage of oysters are able to produce these large, high-quality pearls…

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