Columbite

noun

Definitions

Noun
  1. 1
    A black mineral that is a mixed iron and manganese niobate and tantalate, and is the main ore of niobium and tantalum.
  2. 2
    a black mineral that is an ore of niobium and tantalum wordnet

Etymology

From columbium (“niobium”) + -ite.

Next best steps

Mini challenge

Unscramble this word: columbite