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columbite
[ kuh-luhm-bahyt ]
/ kəˈlʌm baɪt /
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This shows grade level based on the word's complexity.
noun
a black, crystalline mineral, iron niobate, (Fe, Mn)Nb2O6, the principal ore of niobium, an end member of a series of solid solutions in which manganese and tantalum combine to form tantalite.
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Origin of columbite
First recorded in 1795–1805; columb(ium) + -ite1
Words nearby columbite
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use columbite in a sentence
Columbium pentoxide (columbic acid), Cb2O5, is obtained from columbite, after the removal of tantalum (see above).
British Dictionary definitions for columbite
columbite
/ (kəˈlʌmbaɪt) /
noun
a black mineral consisting of a niobium oxide of iron and manganese in orthorhombic crystalline form: occurs in coarse granite, often with tantalite, and is an ore of niobium. Formula: (Fe, Mn)(Nb) 2 O 6Also called: niobite
Word Origin for columbite
C19: from columbium + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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