(H3O)Fe(SO4)2 Peterson R C, Valyashko E, Wang R The Canadian Mineralogist 47 (2009) 625-634 The atomic structure of (H3O)Fe3+(SO4)2 and rhomboclase, (H5O2)Fe3+(SO4)2*2H2O Locality: synthetic _database_code_amcsd 0006291 4.801 8.271 8.311 70.605 89.959 89.951 P-1 atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Fe .7501 .0115 .2467 .014 .005 .032 .009 -.012 .000 -.001 S1 .2502 .7902 .4797 .014 .011 .019 .011 -.006 .001 .000 S2 .7502 .7811 .9961 .012 .011 .020 .007 -.006 .000 .000 O1 .4200 .8648 .3251 .020 .011 .040 .011 -.012 .004 -.004 O2 -.0392 .8608 .4418 .018 .007 .039 .008 -.009 -.001 -.003 O3 .3614 .8410 .6200 .022 .015 .048 .008 -.016 -.008 .010 O4 .2830 .6061 .5314 .038 O5 .8658 .8609 .1180 .019 .016 .032 .013 -.013 -.003 .003 O6 .9283 .8346 .8423 .017 .005 .037 .013 -.015 .004 -.002 O7 .4666 .8395 .9512 .023 .004 .054 .008 -.008 .000 -.001 O8 .7600 .6020 .0830 .017 O9H3 .7502 .5031 .7451 .022 .018 .026 .022 -.009 -.001 -.001