Chalcogen, Cramed

• As-Ge-Te
• K-O-Pb-Ta
• Ba-Cu-La-O
• O-Ti
• O-Pb-S
• structural properties
• phase transitions
• phase diagram
• chalcogen
• transitional
• pnictogen
• alkali
• quaternary
• monoclinic
• trigonal
• cubic
• orthorhombic
• tetragonal