1990, Monoclinic, Structural properties, Transitional

• In-Na-O-Sc-Si
• Ba-O-Ti
• Al-Fe-K-Mg-O-Si-Ti
• Cu-O
• Na-O-V
• thermal and thermodynamic properties
• thermal expansion
• mechanical properties
• compressibility
• transitional
• chalcogen
• non-disordered
• disordered