data_global
_chemical_name_mineral 'h-Magnetite'
loop_
_publ_author_name
'Koch-Muller M'
'Mugnaioli E'
'Rhede D'
'Speziale S'
'Kolb U'
'Wirth R'
_journal_name_full 'American Mineralogist'
_journal_volume 99 
_journal_year 2014
_journal_page_first 2405
_journal_page_last 2415
_publ_section_title
;
 Synthesis of a quenchable high-pressure form of magnetite (h-Fe3O4) with
 composition Fe1(Fe2+0.75Mg0.26)Fe2(Fe3+0.70Cr0.15Al0.11Si0.04)2O4
 Note: Sample Crystal 2
;
_database_code_amcsd 0020415
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Fe2.15 Cr.3 Al.22 Si.08 Mg.26 O4'
_cell_length_a 9.8
_cell_length_b 9.6
_cell_length_c 2.87
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 270.010
_exptl_crystal_density_diffrn      5.269
_symmetry_space_group_name_H-M 'A m a m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  'x,y,-z'
  'x,1/2+y,1/2-z'
  '-x,-y,z'
  '-x,1/2-y,1/2+z'
  '1/2-x,y,z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  '-x,-y,-z'
  '-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Fe1   0.07110   0.13460   1.00000   0.70000   0.03300
Cr1   0.07110   0.13460   1.00000   0.15000   0.03300
Al1   0.07110   0.13460   1.00000   0.11000   0.03300
Si1   0.07110   0.13460   1.00000   0.04000   0.03300
Fe2   0.75000   0.12030   0.50000   0.75000   0.02800
Mg2   0.75000   0.12030   0.50000   0.26000   0.02800
O1  -0.10750   0.22310   1.00000   1.00000   0.00600
O2   0.25000   0.05200   1.00000   1.00000   0.02000
O3   0.00000   0.00000   0.50000   1.00000   0.02000