FERGUSONITE

fergusonite

(noun) a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals

Source: WordNet® 3.1


Fer"gu*son*ite, n. (Min.)

Definition: A mineral of a brownish black color, essentially a tantalo- niobate of yttrium, erbium, and cerium; -- so called after Robert Ferguson.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

23 December 2024

QUANDONG

(noun) Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit


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