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  2. Amethyst - Wikipedia

    en.wikipedia.org/wiki/Amethyst

    Amethyst is a violet variety of quartz.The name comes from the Koine Greek αμέθυστος amethystos from α - a-, "not" and μεθύσκω (Ancient Greek) methysko / μεθώ metho (Modern Greek), "intoxicate", a reference to the belief that the stone protected its owner from drunkenness. [1]

  3. Pleochroism - Wikipedia

    en.wikipedia.org/wiki/Pleochroism

    Pleochroism is an extremely useful tool in mineralogy and gemology for mineral and gem identification, since the number of colors visible from different angles can identify the possible crystalline structure of a gemstone or mineral and therefore help to classify it. Minerals that are otherwise very similar often have very different pleochroic ...

  4. Gemstones in the Bible - Wikipedia

    en.wikipedia.org/wiki/Gemstones_in_the_Bible

    The Greek name alludes to the popular belief that amethyst prevented intoxication; as such, drinking vessels were made of amethyst for festivities, and carousers wore amulets made of it to counteract the action of wine. [7] The amethyst is a brilliant transparent stone of a purple color and varies in shade from violet purple to rose.

  5. Ametrine - Wikipedia

    en.wikipedia.org/wiki/Ametrine

    It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia. The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal. The citrine segments have oxidized iron while the amethyst segments are unoxidized.

  6. Quartz - Wikipedia

    en.wikipedia.org/wiki/Quartz

    Prasiolite, an olive colored material, is produced by heat treatment; [68] natural prasiolite has also been observed in Lower Silesia in Poland. [69] Although citrine occurs naturally, the majority is the result of heat-treating amethyst or smoky quartz. [68] Carnelian has been heat-treated to deepen its color since prehistoric times. [70]

  7. Queen Camilla's Amethyst Necklace Sent a Hidden Message ... - AOL

    www.aol.com/queen-camillas-amethyst-necklace...

    Stone added that amethyst's "healing properties add an extra layer of meaning to the necklace, symbolizing strength and resilience during this challenging time." ... 25 of the very best deals from ...

  8. Amethyst (color) - Wikipedia

    en.wikipedia.org/?title=Amethyst_(color)&redirect=no

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  9. 11 must-see astronomy events in 2025 - AOL

    www.aol.com/11-must-see-astronomy-events...

    Summer is the best time of year for seeing the Milky Way, but onlookers will need to travel to a dark area away from human-made light pollution to see the dim glow of the galaxy. Experts recommend ...

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