Non-disordered, O-Si, Temperature for structural transition

• Ba-Cu-O-Si
• Ca-O-Si
• Na-O-Si-Ti
• Al-Ca-H-O-Si
• metalloid
• chalcogen
• non-disordered
• silicate
• nonmetal
• trigonal
• orthorhombic
• monoclinic
• hexagonal
• tetragonal