Burgessite Cooper M A, Hawthorne F C The Canadian Mineralogist 47 (2009) 165-172 The crystal structure of burgessite, Co2(H2O)4[AsO3(OH)]2(H2O), and its relation to erythrite Locality: Keeley mine, South Lorrain Township, Timiskaming District, Ontario, Canada _database_code_amcsd 0006277 4.7058 9.299 12.738 90 98.933 90 P2_1/n atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Co .4498 .4601 .37868 .0170 .0138 .0195 .0183 .0004 .0043 -.0019 As .4837 .18791 .03248 .0148 .0124 .0150 .0178 .0007 .0043 .0008 O1 .148 .6329 .3589 .019 .017 .025 .015 .005 .004 -.006 O2 .2812 .4083 .5168 .014 .016 .010 .017 .007 .002 -.006 O3 .7590 .2968 .4195 .019 .012 .027 .017 .007 .003 -.006 OH4 .600 .3615 .0676 .031 .048 .015 .033 -.006 .011 -.005 O5 .627 .5311 .2488 .019 .017 .025 .016 -.000 .007 -.004 O6 .170 .3317 .2767 .023 .018 .023 .027 -.006 .006 -.004 Wat7 .444 .052 .4278 .5 .031 H1 .64 .470 .186 .03 H2 .818 .573 .271 .03 H3 .04 .270 .312 .03 H4 .26 .272 .228 .03