His conversation contained no mention of columbite-tantalite (a.k.a. "coltan").    From Wordnik.com.  [America: The Land of Denial] Reference

Africa provides columbite-tantalite, the mineral from which most computer chips are made.    From Wordnik.com.  [Missing in Action:Africa and the G20] Reference

Coltan - short for columbite-tantalite - sells at dlrs 50 per kilogram on the international market and is used in the manufacture of computer chips and other high-tech gadgets.    From Wordnik.com.  [ANC Daily News Briefing] Reference

There are deposits of gold, cassiterite (a tin ore) and coltan (columbite-tantalite) ore of a high grade which in 2000 fetched very high prices as a metal used in computer and mobile phone microchips.    From Wordnik.com.  [Okapi Faunal Reserve, Democratic Republic of Congo] Reference

Global demand for columbite-tantalite (a.k.a. "coltan"), a common cell phone component, is fueling war and environmental destruction in the Democratic Republic of Congo ... but leftists aren't supposed to acknowledge their complicity.    From Wordnik.com.  [No innocent bystanders in America] Reference

Overall, Congo has over half the world's cobalt, one-third of its diamonds, and three-fourths of its vital columbite-tantalite or "coltan," essential for computer chips, circuit boards, mobile phones, laptops, and other electronic devices.    From Wordnik.com.  [Reviewing F. William Engdahl's "Full Spectrum Dominance:" Part II] Reference

(columbite-tantalite) traders, and Alfred Rwigema and Ronald.    From Wordnik.com.  [ANC Daily News Briefing] Reference

Conflict minerals are defined as gold, cassiterite, wolframite and columbite-tantalite, also called coltan.    From Wordnik.com.  [SEC proposes new mining, minerals rules - Yahoo! Finance] Reference

That includes trace amounts of exotic metals like columbite-tantalite, often mined in war-torn regions of Africa.    From Wordnik.com.  [All Today's News - Sightline Daily] Reference

There's a crucial element in the manufacture of cell phones, laptops and the like called columbite-tantalite (or coltan).    From Wordnik.com.  [Latest Articles] Reference

One of the deposits is a natural metallic ore, columbite-tantalite, or coltan, that, when refined, stores an electric charge in a capacitor used in common electronic devices.    From Wordnik.com.  [The Agonist - thoughtful, global, timely] Reference

In many parts of the provinces of North and South Kivu, armed groups and the Congolese national army control the trade in cassiterite (tin ore), gold, columbite-tantalite (coltan), wolframite (a source of tungsten) and other minerals.    From Wordnik.com.  [AllAfrica News: Latest] Reference

NY Newswire on Huffington Post today that introduces the first motive factor in the decade long war that's ravaging the Congo: the country's incredible mineral wealth, especially columbite-tantalite, or coltan, which is used in millions of cell phones.    From Wordnik.com.  [The Agonist - thoughtful, global, timely] Reference

The campaign also has a more tangible motive: the trade in columbite-tantalite (coltan), dubbed "Africa's blood metal", a rare mineral which is a crucial element in mobile phones, laptops and videogame consoles, and is mined in Congo, along with diamonds and gold.    From Wordnik.com.  [Pat Dollard | Young Americans] Reference

Throughout the park there are surficial deposits of gold, cassiterite (a tin ore) and 15% of the world’s mined coltan (columbite-tantalite) ore of a high grade which, in 2000, fetched very high prices as a component of computer and mobile phone capacitors.    From Wordnik.com.  [Kahuzi-Biéga National Park, Democratic Republic of Congo] Reference

You have coltan, or columbite-tantalite.    From Wordnik.com.  [MyAntiwar.org] Reference

(columbite-tantalite).    From Wordnik.com.  [StrategyPage.com] Reference