Chalcogen, Disordered, Metalloid, Silicate, Fusion, Si

• Al-H-Na-O-Si
• Al-Ca-H-O-Si
• Al-Na-O-Si
• Al-H-Mg-O-Si
• Al-H-K-O-Si
• temperature for congruent melting
• metalloid
• silicate
• chalcogen
• disordered
• monoclinic
• orthorhombic
• cubic
• trigonal
• hexagonal