AM_Bussenite Formula: Na1.95 K.2 Ba1.27 Mn.375 Fe.675 Sr.32 Ca.21 (Ti.95 Nb.05) Si2 C O13 F H3 Name: Bussenite Unit cell: 5.399 7.016 16.254 102.44 93.18 90.1 , V=600.25 Space group: P-1 (2)

Zhou H , Rastsvetaeva R K , Khomyakov A P , Ma Z , Shi N , Crystallography Reports , 47 (2002) p.43-46, Crystal structure of new micalike titanosilicate - bussenite,, Na2Ba2Fe2+[TiSi2O7][CO3]O(OH)(H2O)F, Locality: Khibiny alkaline massif, Kola Peninsula, Russia