Lanthanoid, Rare earth, Ltpheg

• La-Mn-O-Sr
• Fe-La-Mn-O-Sr
• B-Fe-Nd-O
• B-Dy-Fe-Nd-O
• Ag-La-Mn-O
• structural properties
• lanthanoid
• rare earth
• transitional
• chalcogen
• quaternary
• trigonal
• orthorhombic