Ferrihydrite Michel F M, Ehm L, Antao S M, Lee P L, Chupas P J, Liu G, Strongin D R, Schoonen M A A, Phillips B L, Parise J B Science 316 (2007) 1726-1729 The structure of ferrihydrite, a nanocrystalline material Locality: synthetic Sample: Fhyd6 _database_code_amcsd 0015439 5.928 5.928 9.126 90 90 120 P6_3mc atom x y z occ Uiso Fe1 .1695 .8304 .6365 .011 Fe2 1/3 2/3 .3379 .97 .011 Fe3 1/3 2/3 .9595 .96 .011 OH1 0 0 .0446 .007 O2 1/3 2/3 .7634 .007 O3 .1697 .8302 .2467 .007 O4 .5227 .4773 .9796 .007