tantalite

(tantə līt′)

noun

a black, orthorhombic mineral, (Fe,Mn)(Ta,Nb)O, that is an ore of tantalum and niobium

Origin: Ger tantalit: see tantalum & -ite

See tantalite in American Heritage Dictionary 4

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.

Origin:

Origin: tantal(um)

Origin: + -ite1

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