Alkaline, Chalcogen, Rare earth, Hexagonal, Paramagnetic moment

• Ba-Ho-Ir-O-Ru
• Ba-Er-Ir-O-Ru
• Ba-Gd-Ir-O-Ru
• Ba-Dy-Ir-O-Ru
• Ba-Ir-La-O-Ru
• chalcogen
• rare earth
• alkaline
• oxide
• transitional