data_global
_chemical_name_mineral 'Fairfieldite'
loop_
_publ_author_name
'Fanfani L'
'Nunzi A'
'Zanazzi P F'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 26 
_journal_year 1970
_journal_page_first 640
_journal_page_last 645
_publ_section_title
;
 The crystal structure of fairfieldite
;
_database_code_amcsd 0009374
_chemical_compound_source 'Foote Mine, North Carolina, USA'
_chemical_formula_sum 'Ca2 Mn P2 O10 H4'
_cell_length_a 5.79
_cell_length_b 6.57
_cell_length_c 5.51
_cell_angle_alpha 102.27
_cell_angle_beta 108.67
_cell_angle_gamma 90.30
_cell_volume 193.428
_exptl_crystal_density_diffrn      3.100
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,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
Ca   0.60200   0.23370   0.33320   0.00279
Mn   0.00000   0.00000   0.00000   0.00405
P   0.24630   0.23250   0.64720   0.00152
O1   0.00310   0.32640   0.61570   0.00608
O2   0.45520   0.39950   0.69400   0.00519
O3   0.24610   0.06990   0.39650   0.00570
O4   0.30580   0.11770   0.87850   0.00545
Wat5  -0.15430   0.30040   0.06630   0.00735