noun Etymology: New Latin columbium Date: 1805 a black mineral consisting mostly of iron and niobium

New Collegiate Dictionary. 2001.

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  • Columbite — (Fe) General Category Oxide minerals Chemical formula Fe2+Nb2O …   Wikipedia

  • Columbite — Co*lum bite, n. [Cf. F. colombite. See {Columbium}.] (Min.) A mineral of a black color, submetallic luster, and high specific specific gravity. It is a niobate (or columbate) of iron and manganese, containing tantalate of iron; first found in New …   The Collaborative International Dictionary of English

  • columbite — [kə lum′bīt΄] n. [ COLUMB(IUM) + ITE1] a black, orthorhombic mineral, (Fe,Mn)(Nb,Ta) 2O6, that is an ore of niobium and tantalum …   English World dictionary

  • columbite — ● colombite ou columbite nom féminin (anglais columbite) Niobotantalate naturel de fer et de manganèse, utilisé comme minerai de niobium (ou colombium). ● colombite ou columbite (synonymes) nom féminin (anglais columbite) Niobotantalate naturel… …   Encyclopédie Universelle

  • columbite — /keuh lum buyt/, n. 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. [1795 1805; COLUMB(IUM) + ITE1] * …   Universalium

  • columbite — kolumbitas statusas T sritis chemija apibrėžtis Mineralas. formulė (Fe,Mn)(Nb,Ta)₂O₆ atitikmenys: angl. columbite; niobite rus. колумбит; ниобит ryšiai: sinonimas – niobitas …   Chemijos terminų aiškinamasis žodynas

  • columbite — noun A black mineral that is a mixed iron and manganese niobate and tantalate, and is the main ore of niobium and tantalum See Also: columbium …   Wiktionary

  • columbite — co·lum·bì·te s.f. TS mineral. minerale raro di colore nero, costituito da ossido di ferro, manganese, niobio e tantalio, principale fonte di questi ultimi due metalli {{line}} {{/line}} DATA: 1892 …   Dizionario italiano

  • columbite — pl.f. columbiti …   Dizionario dei sinonimi e contrari

  • columbite — [kə lʌmbʌɪt] noun a black mineral consisting of an oxide of iron, manganese, niobium, and tantalum. Origin C19: from columbium + ite1 …   English new terms dictionary

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