What is the meaning of Fergusonite?

(n.) A mineral of a brownish black color, essentially a tantalo-niobate of yttrium, erbium, and cerium; -- so called after Robert Ferguson.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). Fergusonite. Retrieved September 22, 2026, from http://smartdefine.org/fergusonite/definitions/2007535
ChicagoWebster's. 2011. "Fergusonite" http://smartdefine.org/fergusonite/definitions/2007535 (accessed September 22, 2026).
HarvardWebster's 2011, Fergusonite, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/fergusonite/definitions/2007535>.
MLAWebster's. "Fergusonite" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/fergusonite/definitions/2007535>
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