C3O1L1T1A1N1
8 points
COLTAN is validvalid
a black ore containing columbite and tantalite [n COLTANS]
a metallic ore of columbite and tantalite, found in the Congo [n -S]
a black ore containing columbite and tantalite [n COLTANS]
a metallic ore of columbite and tantalite, found in the Congo [n -S]