AM_Fedorite_1 Formula: Ca4.49 Na3.79 Si16 O41.46 F2 K.78 H10 Name: Fedorite Unit cell: 9.645 9.6498 12.6165 102.427 96.247 119.894 , V=961.24 Space group: P-1 (2)

Mitchell R H , Burns P C , The Canadian Mineralogist , 39 (2001) p.769-777, The structure of fedorite: A re-appraisal, Locality: Little Murun complex, Sakha, Russia