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  1. the colorless or white variety of tourmaline, often used as a gem.

Origin of achroite

< Greek áchro(os) colorless (a- a-6 + -chroos colored) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for achroite

Historical Examples

  • Red tourmaline is, however, sometimes called "rubellite," and white tourmaline has been called "achroite."

    A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public</p>

    Frank Bertram Wade

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