Alkaline, Chalcogen, Transitional, Khan, Structural properties

• Ba-Ca-Cu-O-Tl
• Ba-Co-Fe-O
• Co-Fe-O-Sr
• Cr-Fe-Mg-O
• Fe-Mg-O
• chalcogen
• transitional
• alkaline
• oxide
• cubic
• tetragonal
• trigonal
• orthorhombic
• hexagonal