Chalcogen, Disordered, Silicate, Phase transitions

• Al-H-Na-O-Si
• O-Si
• Al-Na-O-Si
• Al-Ca-H-O-Si
• Al-H-Mg-O-Si
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• pressure for structural transition
• silicate
• chalcogen
• metalloid
• disordered
• monoclinic
• orthorhombic
• cubic
• trigonal
• hexagonal