AM_Kamchatkite Formula: K Cu3 S2 O9 Cl Name: Kamchatkite Unit cell: 9.741 12.858 7.001 90.0 90.0 90.0 , V=876.87 Space group: PNA21 (33)

Varaksina T V , Fundamensky V S , Filatov S K , Vergasova L P , Mineralogical Magazine , 54 (1990) p.613-616, The crystal structure of kamchatkite, a new naturally occuring, oxychloride sulphate of potassium and copper, Locality: Tolbachik Main Fracture eruption, Kamchatka, Russia