Alkali, Chalcogen, Disordered, Transitional, Fusion, Tetragonal

• F-Na-O-P-V
• Na-Nb-O-Sr
• La-Li-O-Ti
• K-Nb-O
• Ba-Ca-Cu-O-Rb-Tl
• temperature for congruent melting
• disordered
• transitional
• alkali
• chalcogen