Non-disordered, Silicate, O-Si, Structural transitions

• Ba-Cu-O-Si
• Ca-O-Si
• Na-O-Si-Ti
• K-O-Si-U
• temperature for structural transition
• pressure for structural transition
• structural transition
• silicate
• chalcogen
• non-disordered
• metalloid
• binary
• trigonal
• monoclinic
• hexagonal
• tetragonal
• orthorhombic