bismutocolumbite
Noun
Meaning
bismutocolumbite (uncountable)
(mineralogy) An orthorhombic-dipyramidal black mineral containing bismuth, niobium, oxygen, and tantalum.
Noun
bismutocolumbite (uncountable)
(mineralogy) An orthorhombic-dipyramidal black mineral containing bismuth, niobium, oxygen, and tantalum.