Chalcogen, Chloride, Fusion, Tetragonal

• Cl-Co-O-Sr
• Cl-Mn-O-Sr
• Bi-Ca-Cl-O
• Cl-Cu-H-O-Pb
• Bi-Cl-O-Pb
• temperature for congruent melting
• halogen
• chloride
• chalcogen
• transitional