What Is Coltan? ABC NewsYou may not have heard of coltan, but you have it in your cell phone, laptops, pagers and other electronic devices. It is important to everyday communication in the ...C

Coltan Facts Break The Silence Congo WeekColtan: What You Should Know. What is Coltan? Coltan is short for Columbite-tantalite a black tar-like mineral found in major quantities in the Congo..C

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Coltan WikipediaColtan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted.What Is Col