Todorokite Post J E, Bish D L American Mineralogist 73 (1988) 861-869 Rietveld refinement of the todorokite structure Sample: Cuba _database_code_amcsd 0001190 9.789 2.834 9.551 90 93.7 90 P2/m atom x y z Biso Mn1 .5 .5 0 .8 Mn2 .764 0 .002 .8 Mn3 0 0 .5 .8 Mn4 .99 .5 .759 .8 O1 .18 .5 .116 1.0 O2 .403 0 .069 1.0 O3 .663 .5 .11 1.0 O4 .908 0 .15 1.0 O5 .993 .5 .472 1.0 O6 .889 0 .666 1.0