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BY AIMEE DERONDE AND SARAH ROONEY Coltan. What is Coltan? Coltan (short for columbite-tantalite) is an important substance that many people unknowingly. - ppt download
The real costs of coltan mining in the DRC — report - MINING.COM
Uses for Coltan - the coltan industry
Your Phone, Coltan and the Business Case for Innovative Sustainable Alternatives - Humanity in Action
Coltan | IEW
Where Apple Gets the Tantalum for Your iPhone
Child miners: the dark side of the DRC's coltan wealth | ISS Africa
Brazil increases its coltan extraction, boosted by Chinese investment. Global Affairs. University of Navarra
iPhone mineral miners of Africa use bare hands | Daily Mail Online
The Mining of Coltan: Chances are Your Smartphone Was Manufactured With African Blood
Kenya's Coltan Discovery: Unveiling a Game-Changer in Mobile Technology
Coltan | The Venezuelan's Regime Smuggling of “Blue Gold” 2020 - SOS Orinoco
Coltan | Earth Sciences Museum
Why and where he use coltan. | Coltan by pablodonagonza
The Rise of Coltan: The Revolutionary Coltan Mining Industry | Wigmore Trading
Five things you need to know about coltan - ICIJ
Coltan Mining in Congo: What We Should Know – Global Extraction Networks