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Fine Jewelry University Articles matching: “crystal”

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Fine Jewelry University

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

    Gem in the Spotlight: Amethyst

    FJU Category: Gemstones | Tags: Amethyst, Folklore, Gem Spotlight, Gemology, Jewelry History

    … way to pay tribute to the goddess Diana. In order to protect Amethyst, Diana turned her into a statue made of pure, crystalline quartz. Dionysus, upon seeing the stunning statue, wept tears of wine in remorse for his actions. These tears … a deep, rich purple color. Amethyst also naturally occurs as geodes (rock that contains a hollow cavity lined with crystals) and the most famous of these is the largest ever found. This amazing stone named “The Empress of Uruguay” stands 10…

  2. Beautiful iolite jewelry and loose gemstones

    Gem in the Spotlight: Iolite

    FJU Category: Gemstones | Tags: Colored Gemstones, Folklore, Gem Spotlight, Gemology, Iolite, Jewelry History

    …, especially with polarized light. Pleochroism is caused by differing absorption of light rays in doubly refractive crystals. Thus, no singly refractive gemstone can exhibit pleochroism. The process works because of the ability of a gem to …

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