Coltan 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 that can hold a high electrical charge.Eighty-percent of the world’s known coltan supply is in the Democratic Republic of Congo. Coltan is mined through a fairly primitive process similar to how gold was mined in California during the 1800s.Coltan mining is very well paid in Congo terms. The average Congolese worker makes $10 a month, while a coltan miner can make anywhere from $10 to $50 a week.
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