UrbanMines Tech. Limited is a worldwide reliable supplier of Rare Metal Oxides & Compounds, Rare-Earth Oxides & Compounds, Pyrite and nonferrous metal recycling management. UrbanMines is becoming a professional leader in advanced materials and recycling and makes a real difference in the markets it serves with its expertise in materials science, chemistry and metallurgy.
Niobium Oxide, sometimes called columbium oxide, at UrbanMines refer to Niobium Pentoxide (niobium(V) oxide), Nb2O5. Natural niobium oxide is sometimes known as niobia.