AM_Nefedovite Formula: Na5 Ca4 P4 O16 F Name: Nefedovite Unit cell: 11.644 11.644 5.396 90.0 90.0 90.0 , V=731.60 Space group: I1-41 (1)

Sebals M , Dorokhova G I , Pobedimskaya E A , Khomyakov A P , Doklady Akademii Nauk SSSR , 278 (1984) p.353-357, The crystal structure of nefedovite and its typomorphism