AM_Corkite_1 Formula: Pb Fe3 (S P) O14 H6 Name: Corkite Unit cell: 7.28 7.28 16.821 90.0 90.0 120.0 , V=772.05 Space group: R-3M (166)

Giuseppe G , Tadini C , Neues Jahrbuch fur Mineralogie, Monatshefte , 1987 (1987) p.71-81, Corkite, PbFe3(SO4)(PO4)(OH)6, its crystal structure and ordered, arrangement of the tetrahedral cations, Note: this is not the prefered structure of these authors, Locality: Dernbach, Hessen-Nassau, Germany