Alkali, Chalcogen, Disordered, Fusion, Orthorhombic

• Al-H-Na-O-Si
• Al-H-O-Rb-Si
• Al-Na-O-Si
• Al-H-K-O-Si
• Al-Ca-H-Na-O-Si
• temperature for congruent melting
• disordered
• chalcogen
• alkali
• transitional