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Iolite vs Amethyst - What's the difference?

iolite | amethyst |

As nouns the difference between iolite and amethyst

is that iolite is (gemology) the clear variety of cordierite while amethyst is amethyst.

iolite

English

(Cordierite)

Noun

  • (gemology) The clear variety of cordierite.

    • Synonyms

    * cordierite * dichroite

    amethyst

    English

    (wikipedia amethyst)

    Noun

    (en noun)
  • A transparent purple variety of quartz, used as a gemstone.
  • * {{quote-magazine, date=2012-03
    • , author=Lee A. Groat , title=Gemstones , volume=100, issue=2, page=128 , magazine=(American Scientist) citation , passage=Although there are dozens of different types of gems, among the best known and most important are […] . (Common gem materials not addressed in this article include amber, amethyst , chalcedony, garnet, lazurite, malachite, opals, peridot, rhodonite, spinel, tourmaline, turquoise and zircon.)}}
  • (uncountable) A purple colour.
  • (tincture) The purple tincture when emblazoning the arms of the English nobility.

    • Adjective

    (en adjective)
  • Having a colour similar to that of the gemstone

    • See also

    *

    References

    *