Luogufengite Xu H, Lee S, Xu H American Mineralogist 102 (2017) 711-719 Luogufengite: A new nano-mineral of Fe2O3 polymorph with giant coercive field Locality: basaltic scoria, Menan Volcanic Complex, Rexburg, Idaho, USA _database_code_amcsd 0020692 5.0647 8.7131 9.3842 90 90 90 Pna2_1 atom x y z occ Fe1 .1941 .1569 .5789 Fe2 .6844 .0228 .7893 Fe3 .1878 .1531 .0000 .68 Al3 .1878 .1531 .0000 .27 Mg3 .1878 .1531 .0000 .02 Ti3 .1878 .1531 .0000 .03 Fe4 .8081 .1602 .3044 .75 Al4 .8081 .1602 .3044 .20 Mg4 .8081 .1602 .3044 .02 Ti4 .8081 .1602 .3044 .03 O1 .9812 .3356 .4396 O2 .5106 .4953 .4154 O3 .6477 .9869 .1961 O4 .1569 .1568 .1902 O5 .8325 .1705 .6651 O6 .5391 .1717 .9423