A 2003 UN report labeled Uganda, Burundi, and Rwanda (*) smugglers of this  material, the sale of which partly financed the Ituri conflict between the Lendu and Hema tribes.
Nearly half of the world's supply of this material was controlled by the Australian Sons of Gwalia corporation before its  2005 bankruptcy. George W. Bush's 2004 Secretary of Energy appointee, Sam Bodman, was a former CEO of Cabot  Corporation, which made possibly illegal purchases of this material from Eagle Wings Resources. Similar to diamonds,  this material may be "fingerprinted" using WD-X-ray analysis diffraction analysis to determine its provenance, in a  method endorsed by the trade group TIC. A 2003 UN report labeled Uganda, Burundi, and Rwanda (*) smugglers of this  material, the sale of which partly financed the Ituri conflict between the Lendu and Hema tribes. For 10 points, name this ore  important to the creation of the tantalum capacitors found in cell phones and other electronic devices, which is a conflict mineral  in the Democratic Republic of the Congo.
Nearly half of the world's supply of this material was controlled by the Australian Sons of Gwalia corporation before its  2005 bankruptcy.
coltan [accept columbite-tantalite or tantalum before “tantalum”]