About 98,600 results
Open links in new tab
  1. Coltan - Wikipedia

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

  2. The rising spotlight on coltan: Understanding its strategic importance ...

    Mar 25, 2025 · What is coltan, and why is it a “strategic” mineral? The term “coltan” was coined by Congolese miners to refer to columbite-tantalite, which consists of two minerals: columbite, …

  3. What is Coltan? Coltan is short for Columbite-tantalite - a black tar-like mineral found in major quantities in the Congo. The Congo possesses 64 percent of the world's reserves of coltan. When coltan is …

  4. What is Coltan? 5 Facts to Know About the Conflict Mineral

    Aug 22, 2024 · Coltan is essential to our lives. Explore what coltan is, what it's used for, where and how it’s mined and why it’s a conflict mineral.

  5. Congo’s coltan miners dig for world’s tech — and struggle regardless …

    The mines produce coltan — short for columbite-tantalite — an ore from which the metals tantalum and niobium are extracted. Both are considered critical raw materials by the United States, the European …

  6. What Is Coltan And How Is It Beneficiated? - JXSC Machinery

    Jan 5, 2026 · Coltan is the name for the composite mineral niobium-tantalite; a dark black metal mineral containing tantalum and niobium. Coltan is a basic component of a range of electronic devices, from …

  7. Coltan, the ‘Blue Gold’ Fueling Colombia’s Armed Conflict

    Sep 7, 2025 · Coltan is prized for its high concentrations of tantalum, a mineral critical to the electronics and aerospace industries. It’s essential in the production of capacitors used in devices that demand …

  8. Venezuela’s Minerals: From Gold, Bauxite to Coltan and Iron Ore

    Jan 4, 2026 · From gold and bauxite to coltan and iron ore, the country’s mineral resources, concentrated largely in the Orinoco Mining Arc, have become a central, if quieter, front in the …

  9. Coltan | Earth Sciences Museum | University of Waterloo

    Jun 8, 2011 · Coltan is short for columbite-tantalite, a dull metallic ore. When refined, coltan becomes a heat resistant powder, metallic tantalum, which has unique properties for storing electrical charge. …

  10. What is Coltan? – BlueStream Coltan

    Coltan, short for (Columbite-Tantalite), is a dull metallic ore used in many different industries, mainly for its high content of Tantalite: the main component in the production of Tantalum.