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  2. Larimar - Wikipedia

    en.wikipedia.org/wiki/Larimar

    Larimar is the tradename for a rare blue variety of the silicate mineral pectolite found only in the Dominican Republic, around the city of Barahona. [4] Its coloration varies from bluish white, light-blue, light-green, green-blue, turquoise blue, turquoise green, turquoise blue-green, deep green, dark green, to deep blue, dark blue and purple, violet and indigo and the larimar can come in ...

  3. Luminous gemstones - Wikipedia

    en.wikipedia.org/wiki/Luminous_gemstones

    The first theme is using legendary luminous gems to illuminate buildings, for navigation lights on ships, or sometimes as guiding lights for lost persons (Ball 1938: 498–500). In India, the earliest country in which fine gemstones were known, belief in luminous gems dates back some twenty-five centuries.

  4. Lapis lazuli - Wikipedia

    en.wikipedia.org/wiki/Lapis_Lazuli

    Originating from the Persian word for the gem, lāžward, [1] lapis lazuli is a rock composed primarily of the minerals lazurite, pyrite and calcite. As early as the 7th millennium BC, lapis lazuli was mined in the Sar-i Sang mines, [2] in Shortugai, and in other mines in Badakhshan province in modern northeast Afghanistan. [3]

  5. Tourmaline - Wikipedia

    en.wikipedia.org/wiki/Tourmaline

    Rarely, it can be found as neon green or electric blue. Tourmaline ( / ˈtʊərməlɪn, - ˌliːn / TOOR-mə-lin, -⁠leen) is a crystalline silicate mineral group in which boron is compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. This gemstone comes in a wide variety of colors.

  6. Sapphire - Wikipedia

    en.wikipedia.org/wiki/Sapphire

    Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color, it occurs in other colors, including gray and black, and also can be colorless. A pinkish orange variety of sapphire is called padparadscha .

  7. Tanzanite - Wikipedia

    en.wikipedia.org/wiki/Tanzanite

    The scientific name of "blue-violet zoisite" was not thought to be sufficiently consumer friendly by Tiffany's marketing department, who introduced it to the market in 1968. In 2002, the American Gem Trade Association chose tanzanite as a December birthstone , the first change to their birthstone list since 1912.

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