data_global
_chemical_name_mineral 'Krieselite'
loop_
_publ_author_name
'Marler B'
'Wunder B'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 213 
_journal_year 1998
_journal_page_first 3
_journal_page_last 3
_publ_section_title
;
 Crystal structure of dialuminium dihydroxogermanate, Al2GeO4(OH)2
;
_database_code_amcsd 0018650
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Ge Al2 O6 H2'
_cell_length_a 9.107
_cell_length_b 8.551
_cell_length_c 4.804
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 374.106
_exptl_crystal_density_diffrn      3.987
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ge  -0.06157   0.25000   0.40430   0.05300
Al   0.13280   0.07920  -0.09270   0.03800
O1   0.02850   0.25000  -0.27440   0.03800
O2   0.24730   0.25000   0.06160   0.03800
O3  -0.00510   0.08600   0.21330   0.03800
O-H4   0.24840   0.06660  -0.41270   0.03800