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tantalite

[tan-tl-ahyt]
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noun
  1. a black, crystalline mineral, iron tantalate, (Fe, Mn) Ta2O6, the principal ore of tantalum and an end member of a series of solid solutions in which manganese and niobium combine to form columbite.
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Origin of tantalite

First recorded in 1795–1805; tantal(um) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for tantalite

Historical Examples

  • It is a constituent of certain rare minerals, such as tantalite.

    A Textbook of Assaying: For the Use of Those Connected with Mines.

    Cornelius Beringer and John Jacob Beringer


British Dictionary definitions for tantalite

tantalite

noun
  1. a heavy brownish mineral consisting of a tantalum oxide of iron and manganese in orthorhombic crystalline form: it occurs in coarse granite, often with columbite, and is an ore of tantalum. Formula: (Fe,Mn)(Ta,Nb) 2 O 6
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Word Origin

C19: from tantalum + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012