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1. www.gia.edu › tourmalineWhat Is Tourmaline Gemstone | Tourmaline Stone – GIA

   www.gia.edu › tourmaline

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   Tourmaline: A Gemstone Spectrum. Brian C. Cook. Tourmalines have a variety of exciting colors with one of the widest color ranges of any gem species, occurring in various shades of virtually every hue.

2. en.wikipedia.org › wiki › TourmalineTourmaline - Wikipedia

   en.wikipedia.org › wiki › Tourmaline

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   Tourmaline (/ ˈ t ʊər m ə l ɪ n,-ˌ l iː n / 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.

3. geology.com › minerals › tourmalineTourmaline: Earth's most colorful mineral and gemstone -...

   geology.com › minerals › tourmaline

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   Tourmaline is the name of a large group of boron silicate minerals. These minerals share a common crystal structure and similar physical properties - but vary tremendously in chemical composition.

4. rockchasing.com › types-of-tourmalineThe 15 Different Types Of Tourmaline (With Photos) - Rock Chasing

   rockchasing.com › types-of-tourmaline

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   3 Φεβ 2024 · As one of the most fascinating and diverse gemstones you’ll ever come across, the value of tourmaline comes from its stunning range of colors and its amazing properties. This gemstone has something for everyone, whether you’re interested in its science, its history, or just its sheer beauty.

5. www.gemsociety.org › article › tourmaline-jewelry-and-gemstone-informationTourmaline Gem, Price, and Jewelry Information - Gem Society

   www.gemsociety.org › article › tourmaline-jewelry-and-gemstone-information

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   Tourmaline is a name applied to a family of related minerals with widely varying properties. Tourmalines make very popular jewelry stones and come in an amazing range of colors, including multi-color zones. Tourmaline is the modern October birthstone, and pink in particular is a very popular color.

6. geologyscience.com › minerals › tourmalineTourmaline | Properties, Formation, Occurrence - Geology Science

   geologyscience.com › minerals › tourmaline

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   1 Ιουλ 2024 · Tourmaline is a fascinating gemstone that is known for its wide range of colors and unique properties. It is a crystalline mineral composed of complex borosilicate compounds and belongs to the cyclosilicate mineral group.

7. www.minerals.net › gemstone › tourmaline_gemstoneThe Gemstone Tourmaline - The Mineral and Gemstone Kingdom

   www.minerals.net › gemstone › tourmaline_gemstone

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   Detailed gem and jewelry information guide about the gemstone tourmaline: information & pictures (rubellite, paraiba, watermelon, chrome).