Changbaiite (PbNb₂O₆) is a member of the oxide mineral class in which the mineral contains oxygen grouped with one or two metal ion. Changbaiite is classified as a multiple Oxide XY₂O₆ and it generally have ionic bond. Furthermore, it is also orthorhombic at a temperature of 25 degrees and it changes to orthorhombic-tetragonal at 570 degrees.