Coltan, columbo-tantalite, is a mineral used to make resistors in our cellphones, video games, computers and home electronics. Likened to blood diamonds, its mining has not only caused ecological ...

In the Democratic Republic of Congo, the M23 rebel group recently captured Rubaya, a small town at the heart of mining coltan, a coveted mineral used in manufacturing mobile phones and laptops. DR ...

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War and Commerce Blood on Your Phone? Unlikely It's 'Conflict Coltan' Tales of coltan -- tantalum ore -- derived from exploitation in the Congo seem to be myths. But only a new tracking test could ...