"… lar panels, Coltan increases energy efficiency.And as a strategic mineral, Coltan carries weight because it allows guidance controls in smart bombs to work …"

"… ere is no public commodity price index. Most deals are shrouded in secrecy.Coltan is a composite of metals — primarily columbite and tantalite — and mov …"

"… nterested in Coltan because it’s easier to find and earns him good money.Coltan in Venezuela’s Amazon jungle is often found in small rocks close to the …"

"… ge and produce new devices, demand will grow. There is no ready substitute.Coltan’s ability to hold and move electrical signals, and its conductive abilit …"