K-Na-Nb-O, Nonmetal, Oxide, Temperature for structural transition

• K-Li-Na-Nb-O-Sb
• K-Li-Na-Nb-O
• K-Li-Na-Nb-O-Sb-Ta
• K-Li-Na-Nb-O-Ta
• nonmetal
• oxide
• alkali
• chalcogen
• transitional
• tetragonal
• cubic
• orthorhombic
• monoclinic
• trigonal