AM_Imandrite Formula: Na6 Ca1.5 Fe Si6 O18 Name: Imandrite Unit cell: 10.331 10.546 7.426 90.0 90.0 90.0 , V=809.07 Space group: PMNN (58)

Chernitsova N M , Pudovkina Z V , Voronkov A A , Ilyukhin V V , Pyatenko Y A , Doklady Akademii Nauk SSSR , 252 (1980) p.618-621, Imandrite Na12Ca3Fe2[Si6O18]2 - a representative of, a new branch in the lovozerite structural family