Alkaline, Chalcogen, Non-disordered, Infrared spectra, Monoclinic

• Er-O-Sb-Sr
• B-Ca-H-O
• B-Ba-Bi-S
• Ba-Cs-Li-O-P
• Ba-Cl-F-Mn-O-P
• chalcogen
• non-disordered
• alkaline
• quaternary
• transitional