VIDEO: Mining 'blue gold' [Spanish with subtitles] By Ignacio Gómez G. 12:35 pm, March 5, 2012 Updated: 12:19 pm, May 19, 2014 15tweets1 commentE-mailPrint In this report for Colombia’s Noticias Uno, ICIJ reporter Ignacio Gómez investigates the growing illicit trade in strategic coltan mineral. Venezuela emerges as new source of ‘conflict’ minerals