data_global
_chemical_name_mineral 'Richterite'
loop_
_publ_author_name
'Oberti R'
'Ungaretti L'
'Cannillo E'
'Hawthorne F C'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 4 
_journal_year 1992
_journal_page_first 425
_journal_page_last 439
_publ_section_title
;
 The behaviour of Ti in amphiboles: I. Four- and six-coordinate Ti in richterite
 Sample: R(7) Potassium-fluor-richterite
;
_database_code_amcsd 0006443
_chemical_formula_sum 'O22.617 (F1.383 K.986) Ti.32 Fe.292 Mg4.65 Mn.006 Ca1.014 Na.963 Si7.677 Al.053 H.617'
_cell_length_a 10.020
_cell_length_b 18.026
_cell_length_c 5.282
_cell_angle_alpha 90
_cell_angle_beta 104.96
_cell_angle_gamma 90
_cell_volume 921.702
_exptl_crystal_density_diffrn      3.070
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-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
O1   0.11030   0.08540   0.21990   1.00000   0.00646
O2   0.11720   0.16930   0.72580   1.00000   0.00798
O-H3   0.10230   0.00000   0.71480   0.30850   0.00975
F   0.10230   0.00000   0.71480   0.69150   0.00975
O4   0.36090   0.24840   0.79890   1.00000   0.01254
O5   0.34390   0.12990   0.09920   1.00000   0.01140
O6   0.34070   0.11760   0.59500   1.00000   0.01127
O7   0.33350   0.00000   0.30630   1.00000   0.00963
KA   0.00000   0.50000   0.00000   0.32860   0.02077
KAm   0.02840   0.50000   0.06440   0.32860   0.01874
TiM1   0.00000   0.08860   0.50000   0.01000   0.00760
FeM1   0.00000   0.08860   0.50000   0.05830   0.00760
MgM1   0.00000   0.08860   0.50000   0.93000   0.00760
MnM1   0.00000   0.08860   0.50000   0.00120   0.00760
TiM2   0.00000   0.17920   0.00000   0.01000   0.00760
FeM2   0.00000   0.17920   0.00000   0.05830   0.00760
MgM2   0.00000   0.17920   0.00000   0.93000   0.00760
MnM2   0.00000   0.17920   0.00000   0.00120   0.00760
TiM3   0.00000   0.00000   0.00000   0.01000   0.00621
FeM3   0.00000   0.00000   0.00000   0.05830   0.00621
MgM3   0.00000   0.00000   0.00000   0.93000   0.00621
MnM3   0.00000   0.00000   0.00000   0.00120   0.00621
CaM4   0.00000   0.27780   0.50000   0.50700   0.01229
NaM4   0.00000   0.27780   0.50000   0.48150   0.01229
SiT1   0.27580   0.08480   0.30280   0.95960   0.00570
AlT1   0.27580   0.08480   0.30280   0.00660   0.00570
TiT1   0.27580   0.08480   0.30280   0.03370   0.00570
SiT2   0.28450   0.17180   0.80800   0.95960   0.00595
AlT2   0.28450   0.17180   0.80800   0.00660   0.00595
TiT2   0.28450   0.17180   0.80800   0.03370   0.00595