AM_Allochalcoselite Formula: Cu6 Pb Se2 O8 Cl5 Name: Allochalcoselite Unit cell: 18.468 6.1475 15.314 90.0 119.284 90.0 , V=1516.44 Space group: C12/M1 (12)

Krivovichev S V , Filatov S K , Burns P C , Vergasova L P , The Canadian Mineralogist , 44 (2006) p.507-514, The crystal structure of allochalcoselite, Cu+Cu2+5PbO2(SeO3)2Cl5,, a mineral with well-defined Cu+ and Cu2+ positions, Locality: fumaroles of the Great Tolbachik fissure eruption, Kamchatka Peninsula, Russia