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(8) Potassium-fluor-richterite
;
_database_code_amcsd 0006444
_chemical_formula_sum 'O22.556 (F1.444 K) Ti.399 Fe.295 Mg4.656 Mn.007 Ca1.026 Na.935 Si7.58 Al.062 H.556'
_cell_length_a 10.022
_cell_length_b 18.029
_cell_length_c 5.284
_cell_angle_alpha 90
_cell_angle_beta 105.01
_cell_angle_gamma 90
_cell_volume 922.173
_exptl_crystal_density_diffrn      3.077
_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   0.11020   0.08540   0.22000   1.00000   0.00633
O2   0.11720   0.16940   0.72580   1.00000   0.00811
O-H3   0.10220   0.00000   0.71480   0.27800   0.00912
F   0.10220   0.00000   0.71480   0.72200   0.00912
O4   0.36100   0.24840   0.79930   1.00000   0.01267
O5   0.34390   0.13000   0.09970   1.00000   0.01127
O6   0.34070   0.11750   0.59510   1.00000   0.01115
O7   0.33350   0.00000   0.30680   1.00000   0.00963
KA   0.00000   0.50000   0.00000   0.33333   0.02508
KAm   0.03000   0.50000   0.06630   0.33333   0.01988
TiM1   0.00000   0.08860   0.50000   0.00820   0.00773
FeM1   0.00000   0.08860   0.50000   0.05900   0.00773
MgM1   0.00000   0.08860   0.50000   0.93130   0.00773
MnM1   0.00000   0.08860   0.50000   0.00140   0.00773
TiM2   0.00000   0.17920   0.00000   0.00820   0.00760
FeM2   0.00000   0.17920   0.00000   0.05900   0.00760
MgM2   0.00000   0.17920   0.00000   0.93130   0.00760
MnM2   0.00000   0.17920   0.00000   0.00140   0.00760
TiM3   0.00000   0.00000   0.00000   0.00820   0.00621
FeM3   0.00000   0.00000   0.00000   0.05900   0.00621
MgM3   0.00000   0.00000   0.00000   0.93130   0.00621
MnM3   0.00000   0.00000   0.00000   0.00140   0.00621
CaM4   0.00000   0.27790   0.50000   0.51300   0.01229
NaM4   0.00000   0.27790   0.50000   0.46750   0.01229
SiT1   0.27580   0.08480   0.30300   0.94750   0.00545
AlT1   0.27580   0.08480   0.30300   0.00770   0.00545
TiT1   0.27580   0.08480   0.30300   0.04470   0.00545
SiT2   0.28450   0.17180   0.80830   0.94750   0.00583
AlT2   0.28450   0.17180   0.80830   0.00770   0.00583
TiT2   0.28450   0.17180   0.80830   0.04470   0.00583