Alkaline, Cubic, Mg-Nb-O-Pb, Structural properties

• Mg-Nb-O-Pb-Ti
• Mg-Nb-O-Pb-Zr
• La-Mg-Nb-O-Pb
• Mg-Nb-O-Pb-Ta
• oxide
• transitional
• alkaline
• chalcogen
• disordered