Artificial intelligent assistant

wulfenite

wulfenite Min.
  (ˈwʊlfənaɪt)
  [a. G. wulfenit (1845), f. the name F. X. von Wulfen (1728–1805), Austrian scientist, + -ite1 2 b.]
  ‘Molybdate of lead, found in brilliant crystals’ (Chester).

1849 J. Nicol Man. Min. 385 Wulfenite, Haidinger; Molybdate of Lead, Phillips [etc.]. 1858 Greg & Lettsom Man. Min. 411 Wulfenite..decrepitates when heated. 1883 Science I. 609/1 The red varieties of wulfenite.

Oxford English Dictionary

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