data_global
_amcsd_formula_title 'Mn2GeO4-beta'
loop_
_publ_author_name
'Morimoto N'
'Tokonami M'
'Koto K'
'Nakajima S'
_journal_name_full 'American Mineralogist'
_journal_volume 57
_journal_year 1972
_journal_page_first 62
_journal_page_last 75
_publ_section_title
;
 Crystal structures of the high pressure polymorphs of Mn2GeO4
;
_database_code_amcsd 270
_chemical_formula_sum 'Mn2 Ge O4'
_cell_length_a 6.025
_cell_length_b 12.095
_cell_length_c 8.752
_cell_angle_alpha 90.0
_cell_angle_beta 90.0
_cell_angle_gamma 90.0
_cell_volume 637.779
_exptl_crystal_density_diffrn  5.134
_symmetry_space_group_name_H-M 'I m m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'x,1/2-y,z'
  '1/2+x,-y,1/2+z'
  '-x,1/2+y,-z'
  '1/2-x,+y,1/2-z'
  '-x,y,z'
  '1/2-x,1/2+y,1/2+z'
  'x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  'x,1/2+y,-z'
  '1/2+x,+y,1/2-z'
  '-x,1/2-y,z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mn1   0.0  0.0  0.0
Mn2   0.0  0.25  -0.0361
Mn3   0.25  0.1281  0.25
Ge   0.0  0.1192  0.6164
O1   0.0  0.25  0.2123
O2   0.0  0.25  0.7187
O3   0.0  -0.0091  0.2546
O4   0.2588  0.1223  -0.0034
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Mn1   0.00828  0.00519  0.00854  0.0  0.0  -0.00161
Mn2   0.00828  0.00445  0.00776  0.0  0.0  0.0
Mn3   0.0057  0.00667  0.00893  0.0  -0.0008  0.0
Ge   0.00552  0.00445  0.00543  0.0  0.0  0.00536
O1   0.00221  0.00667  0.01979  0.0  0.0  0.0
O2   0.03273  0.01408  0.0031  0.0  0.0  0.0
O3   0.00257  0.01705  0.00776  0.0  0.0  0.00375
O4   0.01545  0.00963  0.00893  0.00222  -0.0008  -0.00054