AM_Fedotovite Formula: K2 Cu3 S3 O13 Name: Fedotovite Unit cell: 19.037 9.479 14.231 90.0 111.04 90.0 , V=2396.80 Space group: C12/C1 (15)

Starova G L , Filatov S K , Fundamensky V S , Vergasova L P , Mineralogical Magazine , 55 (1991) p.613-616, The crystal structure of fedotovite, K2Cu3O(SO4)3, Locality: Tolbachik fissure eruption, Kamchatka Peninsula, Russia, Note: x(S3), z(S3), and z(O11) changed to match bond length table