columbite

listen to the pronunciation of columbite
İngilizce - Türkçe
kolumbit
kolumbit (fe-mn-ta-nb-oksit minerali)
İngilizce - İngilizce
A black mineral that is a mixed iron and manganese niobate and tantalate, and is the main ore of niobium and tantalum
It is a niobate (or columbate) of iron and manganese, containing tantalate of iron; first found in New England
A mineral of a black color, submetallic luster, and high specific specific gravity
columbite-tantalite
a valuable black mineral combining niobite and tantalite; used in cell phones and computer chips
columbite