Chalcogen, Lanthanoid, Rare earth, Transitional, Fusion, Ga-La

• Ga-La-O-Sr
• Ga-La-Mg-O-Sr
• Ca-Ga-La-O
• Co-Ga-La-Mg-O-Sr
• Ba-Cu-Ga-La-O
• temperature for congruent melting
• transitional
• chalcogen
• lanthanoid
• rare earth
• orthorhombic
• trigonal
• tetragonal
• cubic
• hexagonal