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yttrotantalite

[ih-troh-tan-tl-ahyt] /ˌɪ troʊˈtæn tlˌaɪt/
noun
1.
a mineral, tantalite and niobate of yttrium and various elements, as iron, and cerium, occurring in the form of brown-black crystals.
Origin of yttrotantalite
1800-1810
1800-10; yttro- (combining form of yttrium) + tantalite
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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