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  2. Tourmaline - Wikipedia

    en.wikipedia.org/wiki/Tourmaline

    For example, blue indicolite tourmaline is the only blue gemstone of any kind that will show a drag response when a neodymium magnet is applied. Any blue tourmaline that is diamagnetic can be identified as paraiba tourmaline colored by copper in contrast to magnetic blue tourmaline colored by iron. [22]

  3. Elbaite - Wikipedia

    en.wikipedia.org/wiki/Elbaite

    Elbaite, a sodium, lithium, aluminium boro-silicate, with the chemical composition Na(Li 1.5 Al 1.5)Al 6 Si 6 O 18 (BO 3) 3 (OH) 4, [4] is a mineral species belonging to the six-member ring cyclosilicate tourmaline group. Elbaite forms three series, with dravite, with fluor-liddicoatite, and with schorl.

  4. Rubellite - Wikipedia

    en.wikipedia.org/wiki/Rubellite

    Rubellite used to be the most expensive and prized gem in the tourmaline group but has since been eclipsed by the Paraiba tourmaline. [7] [8] The most valuable specimens are colored red and lack brown. [3] Those that are of ruby color are the most valuable. [9]

  5. Gemstone Meanings: Power and Significance of the 25 Most ...

    www.aol.com/gemstone-meanings-power-significance...

    Emeralds and other green gemstones like tourmaline, peridot, and jade correlate to the green color wavelength and heart chakra, so wearing stones of such color can amplify one’s heartfelt ...

  6. Beryl - Wikipedia

    en.wikipedia.org/wiki/Beryl

    In the past, goshenite was used for manufacturing eyeglasses and lenses owing to its transparency. Nowadays, it is most commonly used for gemstone purposes. [45] [46] The gem value of goshenite is relatively low. However, goshenite can be colored yellow, green, pink, blue and in intermediate colors by irradiating it with high-energy particles.

  7. Gemstones in the Bible - Wikipedia

    en.wikipedia.org/wiki/Gemstones_in_the_Bible

    It is the seventh stone in Ezech., xxviii, 14 (in the Hebrew text, for it occurs fifth in the Greek text); it is also the second foundation stone of the celestial Jerusalem (Apoc., xxi, 19). The genuine sapphire is a beautiful blue hyaline corindon and is composed of nearly pure alumina, its colour resulting from the presence of iron oxide .

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