tantalite: Meaning and Definition of

tan•ta•lite

Pronunciation: (tan'tl-īt"), [key]
— n.
  1. a black, crystalline mineral, iron tantalate, (Fe, Mn) TaO, the principal ore of tantalum and an end member of a series of solid solutions in which manganese and niobium combine to form columbite.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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