Na-O-V, Oxide, Transitional, Temperature for congruent melting

• H-Na-O-V
• F-Na-O-V
• Ca-Na-O-V
• Bi-Na-O-V
• transitional
• oxide
• alkali
• chalcogen
• monoclinic
• triclinic
• orthorhombic
• hexagonal
• tetragonal