Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A metallic ore from which is extracted the elements niobium and tantalum

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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

Etymologies

Sorry, no etymologies found.

Examples

  • The massive demand for coltan is credited with fueling the Second Congo War of 1998-2002.

    Archive 2008-01-01

  • The massive demand for coltan is credited with fueling the

    why you so obsessed with the congo, jen?

  • The Congo has almost unparalleled mineral riches, including gold, uranium, the world's biggest industrial diamond deposits, and 80 percent of world reserves in a mineral called coltan, which is crucial to the manufacture of mobile telephones.

    Diamond in the Rough

  • There is gold, copper, diamonds, uranium and tantalum, known as coltan, which is used in electronic devices such as cellphones and computers.

    APA

  • The mineral in question is known as coltan, which is actually African slang for ore that contains tantalum, a metal prized for electronics use because of its resistance to corrosion and heat.

    BusinessWeek.com --

  • The lure of profit from gold and diamonds, as well as from minerals such as coltan, which is used to make mobile phones, have turned eastern Congo into a battlefield.

    The Guardian World News

  • Mobile phones contain a mineral called coltan which is used in the electrical capacitors.

    ReadABlog.com New Blogs and RSS Feeds

  • The most valuable loot is coltan, which is used to make the metal in our mobile phones and games consoles and laptops.

    Johann Hari: We Are Not Being Told The Truth About Libya

  • And as militias continue exchanging automatic weapons and uniforms (paid for by the materials in our mobile phones, a mineral called coltan), fighters find more to fist over; mostly, they are after food as government forces don't appear to be paying and feeding their soldiers.

    Pia Sawhney: Princeton Class Hopeful for Congo

  • Much of the fighting has taken place in regions of northeastern and eastern Congo that are rich in minerals such as gold, diamonds, tin, and coltan, which is used in manufacturing electronics.

    Kagame's Hidden War in the Congo

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