Cell and atoms, Silicate, O-Si, Values of electronic energy gap

• Al-H-Na-O-Si
• H-Mg-O-Si
• H-O-Si
• Al-H-Mg-O-Si
• silicate
• chalcogen
• metalloid
• disordered
• monoclinic
• orthorhombic
• cubic
• trigonal
• tetragonal