Chalcogen, Nonmetal, Oxide, Temperature for structural transition

• Ba-O-Ti
• K-Na-Nb-O
• Mg-Nb-O-Pb-Ti
• Fe-O
• Ba-Ca-O-Ti-Zr
• nonmetal
• chalcogen
• oxide
• transitional
• disordered
• tetragonal
• orthorhombic
• cubic
• monoclinic
• trigonal