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Table of Contents
  • 1. columbite
  • 2. columbite-tantalite
Table of Contents
  • 1. columbite
  • 2. columbite-tantalite
Synonyms

1. columbite

noun. a black mineral that is an ore of niobium and tantalum.

Synonyms

  • mineral
  • atomic number 73
  • niobium
  • niobite
  • Ta
  • Nb
  • atomic number 41

2. columbite-tantalite

noun. a valuable black mineral combining niobite and tantalite; used in cell phones and computer chips.

Synonyms

  • coltan
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