columbite
nounEtymology From columbium (“niobium”) + -ite.
1
Chemistry, Geography, Geology, Mineralogy, Natural sciences, Physical sciences A black mineral that is a mixed iron and manganese niobate and tantalate, and is the main ore of niobium and tantalum.
- Derived terms
- bismutocolumbite, coltan, columbite-tantalite, manganocolumbite, stibiocolumbite, yttrocolumbite