data_global
_chemical_name_mineral 'Epidote'
loop_
_publ_author_name
'Nagashima M'
'Akasada M'
_journal_name_full 'American Mineralogist'
_journal_volume 95 
_journal_year 2010
_journal_page_first 1237
_journal_page_last 1246
_publ_section_title
;
 X-ray Rietveld and 57Fe Mossbauer studies of epidote and piemontite on the join
 Ca2Al2FeSi3O12(OH) - Ca2Al2MnSi3O12(OH) formed by hydrothermal synthesis
 Sample: q=0.75, run 27
;
_database_code_amcsd 0016950
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Ca2 Al2.21 Fe.58 Mn.21 Si3 O13 H'
_cell_length_a 8.8980
_cell_length_b 5.6549
_cell_length_c 10.1752
_cell_angle_alpha 90
_cell_angle_beta 115.428
_cell_angle_gamma 90
_cell_volume 462.390
_exptl_crystal_density_diffrn      3.426
_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   0.75410   0.75000   0.14980   1.00000
Ca2   0.60570   0.75000   0.42470   1.00000
AlM1   0.00000   0.00000   0.00000   0.90000
FeM1   0.00000   0.00000   0.00000   0.08000
MnM1   0.00000   0.00000   0.00000   0.02000
AlM2   0.00000   0.00000   0.50000   1.00000
AlM3   0.29480   0.25000   0.22450   0.31000
FeM3   0.29480   0.25000   0.22450   0.50000
MnM3   0.29480   0.25000   0.22450   0.19000
Si1   0.33990   0.75000   0.04750   1.00000
Si2   0.68120   0.25000   0.27260   1.00000
Si3   0.18730   0.75000   0.32250   1.00000
O1   0.23110   0.98800   0.03620   1.00000
O2   0.30770   0.97800   0.35700   1.00000
O3   0.80110   0.01900   0.34760   1.00000
O4   0.05500   0.25000   0.14000   1.00000
O5   0.03790   0.75000   0.14640   1.00000
O6   0.05350   0.75000   0.40200   1.00000
O7   0.52070   0.75000   0.17820   1.00000
O8   0.52220   0.25000   0.30760   1.00000
O9   0.62200   0.25000   0.09800   1.00000
O-H10   0.07600   0.25000   0.42900   1.00000