data_global
_chemical_name_mineral 'Epidote'
loop_
_publ_author_name
'Ito T'
_journal_name_full 'American Mineralogist'
_journal_volume 32 
_journal_year 1947
_journal_page_first 309
_journal_page_last 321
_publ_section_title
;
 The structure of epidote (HCa2(Al,Fe)Al2Si3O13)
;
_database_code_amcsd 0000041
_chemical_formula_sum 'Ca2 Al2 Fe Si3 O13 H'
_cell_length_a 8.96
_cell_length_b 5.63
_cell_length_c 10.20
_cell_angle_alpha 90
_cell_angle_beta 115.40
_cell_angle_gamma 90
_cell_volume 464.799
_exptl_crystal_density_diffrn      3.453
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca1   0.96300   0.25000   0.64100   1.00000
Ca2   0.96300   0.75000   0.64100   1.00000
Al   0.78900   0.25000   0.81400   1.00000
Fe   0.00000   0.00000   0.00000   1.00000
Si1   0.39400   0.25000   0.71100   0.75000
Al1   0.39400   0.25000   0.71100   0.25000
Si2   0.60400   0.75000   0.69500   0.75000
Al2   0.60400   0.75000   0.69500   0.25000
Si3   0.58200   0.25000   0.55300   0.75000
Al3   0.58200   0.25000   0.55300   0.25000
Si4   0.37500   0.75000   0.94000   0.75000
Al4   0.37500   0.75000   0.94000   0.25000
O1   0.04200   0.00000   0.84300   1.00000
O2   0.30100   0.00000   0.74200   1.00000
O3   0.78300   0.00000   0.69400   1.00000
O4   0.53500   0.25000   0.82100   1.00000
O5   0.53500   0.75000   0.82100   1.00000
O6   0.42000   0.25000   0.58200   1.00000
O7   0.42000   0.75000   0.58200   1.00000
O8   0.00000   0.00000   0.50000   1.00000
O9   0.17900   0.75000   0.03300   1.00000
O-H10   0.17900   0.25000   0.03300   1.00000