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Definition of tantalite

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tan·ta·lite  audio  (tnt-lt) KEY  

NOUN:
A black to red-brown mineral, (Fe,Mn)(Ta,Nb)2O6, distinguished from columbite by the predominance of tantalum over niobium and used as an ore of both elements.
ETYMOLOGY:
tantal(um) + -ite 1


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The American Heritage® Dictionary of the English Language, Fourth Edition.
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