What is the meaning of tourmaline?

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noun

  • A mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones. .
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). Tourmaline. Retrieved September 22, 2026, from http://smartdefine.org/tourmaline/definitions/1249617
ChicagoWordNet. 2010. "Tourmaline" http://smartdefine.org/tourmaline/definitions/1249617 (accessed September 22, 2026).
HarvardWordNet 2010, Tourmaline, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/tourmaline/definitions/1249617>.
MLAWordNet. "Tourmaline" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/tourmaline/definitions/1249617>
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