Kemmler sack, Oxide, Quaternary, Structural properties

• Ba-Co-Ir-O
• Li-Mn-O-Ru
• Ba-Co-Nb-O
• Ba-Nb-O-Ti
• Ba-O-Re-Ta
• quaternary
• chalcogen
• oxide
• alkaline
• transitional
• trigonal
• cubic
• hexagonal
• orthorhombic
• tetragonal