data_global
_chemical_name_mineral 'Luogufengite'
loop_
_publ_author_name
'Xu H'
'Lee S'
'Xu H'
_journal_name_full 'American Mineralogist'
_journal_volume 102 
_journal_year 2017
_journal_page_first 711
_journal_page_last 719
_publ_section_title
;
 Luogufengite: A new nano-mineral of Fe2O3 polymorph with giant coercive field
;
_database_code_amcsd 0020692
_chemical_compound_source 'basaltic scoria, Menan Volcanic Complex, Rexburg, Idaho, USA'
_chemical_formula_sum 'Fe1.715 Al.235 Mg.02 Ti.03 O3'
_cell_length_a 5.0647
_cell_length_b 8.7131
_cell_length_c 9.3842
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 414.118
_exptl_crystal_density_diffrn      4.877
_symmetry_space_group_name_H-M 'P n a 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,z'
  '1/2-x,1/2+y,1/2+z'
  '-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Fe1   0.19410   0.15690   0.57890   1.00000
Fe2   0.68440   0.02280   0.78930   1.00000
Fe3   0.18780   0.15310   0.00000   0.68000
Al3   0.18780   0.15310   0.00000   0.27000
Mg3   0.18780   0.15310   0.00000   0.02000
Ti3   0.18780   0.15310   0.00000   0.03000
Fe4   0.80810   0.16020   0.30440   0.75000
Al4   0.80810   0.16020   0.30440   0.20000
Mg4   0.80810   0.16020   0.30440   0.02000
Ti4   0.80810   0.16020   0.30440   0.03000
O1   0.98120   0.33560   0.43960   1.00000
O2   0.51060   0.49530   0.41540   1.00000
O3   0.64770   0.98690   0.19610   1.00000
O4   0.15690   0.15680   0.19020   1.00000
O5   0.83250   0.17050   0.66510   1.00000
O6   0.53910   0.17170   0.94230   1.00000