Artificial intelligent assistant

lehmannite

ˈlehmannite Min.
  [Named by H. J. Brooke and W. H. Miller, 1852, after Prof. J. G. Lehmann, of St. Petersburg, its discoverer: see -ite.]
  An obsolete synonym of crocoite.

1852 Brooke & Miller Phillips' Min. 557 Lehmannite.

Oxford English Dictionary

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