• Coltan - Wikipedia

    en.wikipedia.org/wiki/Coltan Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which are extracted the elements niobium and tantalum.The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is the tantalite.. Tantalum from coltan is used to manufacture tantalum capacitors which are ...
  • What is Coltan? 5 Facts You Should Know | INN

    investingnews.com/daily/resource-investing/.../coltan-facts Coltan itself is a vessel for technology minerals tantalum and niobium. Coltan, or columbite tantalite, is an ore from which niobium and tantalum are extracted.
  • What Is Coltan? - ABC News

    abcnews.go.com/Nightline/story Columbite-tantalite — coltan for short — is a dull metallic ore found in major quantities in the eastern areas of Congo. When refined, coltan becomes metallic tantalum, a heat-resistant powder ...
  • Coltan | Definition of Coltan by Merriam-Webster

    www.merriam-webster.com/dictionary/coltan Coltan definition is - a dull black ore that consists of a mixture of columbite and tantalite and is a minor source of tantalum.
  • Coltan mining and ethics - Wikipedia

    en.wikipedia.org/wiki/Coltan_mining_and_ethics Coltan is the colloquial name for the mineral columbite-tantalum ("col-tan"); it is sometimes incorrectly used as shorthand for tantalite, a metallic ore from which the very similar elements niobium, also known as columbium, and tantalum are extracted. In the early 21st century coltan mining was associated with human rights violations such as child labour, systematic exploitation of the ...
  • Coltan | Earth Sciences Museum | University of Waterloo

    uwaterloo.ca/earth-sciences-museum/resources/.../coltan 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. Coltan occurs in granitic pegmatites, pockets where the deep seated molten rock crystallized last.
  • Coltan Facts - Break The Silence Congo Week

    congoweek.org/en/coltan-facts.html Coltan is short for Columbite-tantalite - a black tar-like mineral found in major quantities in the Congo.. The Congo possesses 80 percent of the world's coltan. When coltan is refined it becomes a heat resistant powder that can hold a high electric charge. The properties of refined coltan is a vital element in creating devices that store ...
  • 10 Facts about Coltan | Fact File

    factfile.org/10-facts-about-coltan Facts about Coltan present the information about the black metallic ore. The word Coltan is the shortened word for columbite–tantalite. People who work in the industry call it tantalite. The elements like tantalum and niobium are taken from Coltan extraction.
  • Coltan: a new blood mineral | CBC News

    www.cbc.ca/news/technology/coltan-a-new-blood-mineral-1.894027 Coltan, also known as columbite-tantalite, is a dull black metallic mineral containing the elements niobium and tantalum. Tantalum, a heat-resistant material that can hold a strong electrical ...
  • Five things you need to know about coltan - ICIJ

    www.icij.org/investigations/coltan/five-things-you-need-know-about-coltan Coltan’s ability to hold and move electrical signals, and its conductive ability in extreme temperatures, makes it ideal for smart bomb guidance controls. Security analysts say it is a strategic mineral. Recommended reading; Impact Colombia vows to clean up coltan mining Mar 15, 2012 ...