Laurelite Merlino S, Pasero M, Perchiazzi N, Kampf A R American Mineralogist 81 (1996) 1277-1281 Laurelite: Its crystal structure and relationship to alpha-PbF2 _database_code_amcsd 0001838 10.267 10.267 3.9844 90 90 120 P-6 atom x y z occ Uiso Pb1 .5845 .6934 .5 .955 .0164 Pb1' .572 .710 0 .045 .051 Pb2 .8855 .5984 0 .955 .0162 Pb2' .853 .568 .5 .045 .002 Pb3 0 0 .5 .955 .0291 Pb3' 0 0 0 .045 .04 Cl1 1/3 2/3 0 .022 Cl2 2/3 1/3 .5 .022 F1 .048 .620 .5 .018 F2 .609 .570 0 .024 F3 .079 .868 0 .039 F4 .834 .729 .5 .021