All 4-vertex, O-Si

• Al-H-Na-O-Si
• Al-Ca-H-O-Si
• Mg-O-Si
• Al-Na-O-Si
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• mechanical properties
• thermal expansion
• metalloid
• chalcogen
• disordered
• silicate
• monoclinic
• orthorhombic
• cubic
• hexagonal
• trigonal