What is the meaning of black opal?

noun

  • A dark colored opal with internal reflections of green or red. .
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). black opal. Retrieved September 21, 2026, from http://smartdefine.org/black_opal/definitions/1248233
ChicagoWordNet. 2010. "black opal" http://smartdefine.org/black_opal/definitions/1248233 (accessed September 21, 2026).
HarvardWordNet 2010, black opal, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/black_opal/definitions/1248233>.
MLAWordNet. "black opal" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/black_opal/definitions/1248233>