columbite

== English == === Etymology === From columbium (“niobium”) + -ite. === Noun === columbite (plural columbites) (mineralogy) A black mineral that is a mixed iron and manganese niobate and tantalate, and is the main ore of niobium and tantalum. Synonym: greenlandite ==== Derived terms ==== ==== Translations ==== == French == === Noun === columbite f (plural columbites) (mineralogy) columbite === Further reading === “columbite”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012 == Italian == === Pronunciation === IPA(key): /ko.lumˈbi.te/ Rhymes: -ite Hyphenation: co‧lum‧bì‧te === Noun === columbite f (plural columbiti) (mineralogy) columbite