data_global
_chemical_name_mineral 'Childrenite'
loop_
_publ_author_name
'Giuseppetti G'
'Tadini C'
_journal_name_full 'Neues Jahrbuch fur Mineralogie, Monatshefte'
_journal_volume 1984 
_journal_year 1984
_journal_page_first 263
_journal_page_last 271
_publ_section_title
;
 The crystal structure of childrenite from Tavistock (SW England),
 Ch89Eo11 term of childrenite-eosphorite series
 Note: this is the prefered model
;
_database_code_amcsd 0014785
_chemical_compound_source 'Tavistock, SW England'
_chemical_formula_sum '(Fe.89 Mn.11) Al P O7 H4'
_cell_length_a 10.395
_cell_length_b 13.394
_cell_length_c 6.918
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 963.198
_exptl_crystal_density_diffrn      3.168
_symmetry_space_group_name_H-M 'B b a 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,y,1/2+z'
  '1/2-x,1/2+y,z'
  '-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,z'
  '+x,1/2-y,1/2+z'
  '-x,-y,z'
  '1/2-x,-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
Fe   0.13290   0.24990   0.24950   0.89000   0.00785
Mn   0.13290   0.24990   0.24950   0.11000   0.00785
Al   0.24830  -0.00030   0.25000   1.00000   0.00532
P   0.37770   0.33240   0.00000   1.00000   0.00443
O1   0.26430   0.25770  -0.00240   1.00000   0.00785
O2   0.00760   0.22140   0.00120   1.00000   0.00760
O3   0.25360   0.04870   0.00490   1.00000   0.00621
O4   0.10990   0.40850   0.18010   1.00000   0.00583
O4a  -0.11270  -0.40480  -0.18550   1.00000   0.00899
O5   0.13020   0.60110   0.31780   1.00000   0.00431
O5a  -0.13200  -0.60050  -0.32000   1.00000   0.01001
H1   0.27900   0.10700   0.00000   1.00000   0.03420
H2   0.03600   0.41600   0.22500   1.00000   0.02280
H3   0.10000   0.40600   0.04800   1.00000   0.04053
H4  -0.03600  -0.41600  -0.22500   1.00000   0.03546
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
Fe 0.00876 0.00909 0.00533 0.00071 0.00146 0.00047
Mn 0.00876 0.00909 0.00533 0.00071 0.00146 0.00047
Al 0.00657 0.00727 0.00218 0.00000 -0.00036 -0.00188
P 0.00383 0.00454 0.00436 -0.00564 0.00036 0.00047
O1 0.00657 0.00727 0.01018 0.00494 -0.00146 -0.00141
O2 0.00602 0.01000 0.00655 0.00282 -0.00255 -0.00188
O3 0.01095 0.00454 0.00339 -0.00423 -0.00182 -0.00094
O4 0.00602 0.00545 0.00582 0.00353 0.00036 0.00047
O4a 0.00602 0.01454 0.00655 -0.00564 0.00328 -0.00235
O5 0.00438 0.00545 0.00339 0.00071 -0.00109 0.00047
O5a 0.01150 0.01272 0.00630 -0.00705 -0.00036 0.00282