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(3) Potassium-fluor-richterite
;
_database_code_amcsd 0006440
_chemical_formula_sum 'O22.737 (F1.263 Na1.172) K.724 Fe.012 Mg4.983 Mn.004 Ca1.098 Si7.887 Al.018 Ti.002 H.737'
_cell_length_a 9.970
_cell_length_b 17.985
_cell_length_c 5.273
_cell_angle_alpha 90
_cell_angle_beta 104.81
_cell_angle_gamma 90
_cell_volume 914.093
_exptl_crystal_density_diffrn      3.023
_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   0.11060   0.08530   0.21910   1.00000   0.00595
O2   0.11770   0.16930   0.72630   1.00000   0.00709
O-H3   0.10290   0.00000   0.71460   0.36850   0.00823
F   0.10290   0.00000   0.71460   0.63150   0.00823
O4   0.36190   0.24850   0.79670   1.00000   0.01064
O5   0.34470   0.13060   0.09740   1.00000   0.01001
O6   0.34120   0.11710   0.59400   1.00000   0.00963
O7   0.33480   0.00000   0.30030   1.00000   0.00937
NaA   0.00000   0.50000   0.00000   0.21000   0.03128
KA   0.00000   0.50000   0.00000   0.36200   0.03128
NaAm   0.03260   0.50000   0.07470   0.05250   0.02064
KAm   0.03260   0.50000   0.07470   0.09050   0.02064
NaA2   0.00000   0.47060   0.00000   0.05250   0.06079
KA2   0.00000   0.47060   0.00000   0.09050   0.06079
FeM1   0.00000   0.08920   0.50000   0.00250   0.00557
MgM1   0.00000   0.08920   0.50000   0.99660   0.00557
MnM1   0.00000   0.08920   0.50000   0.00080   0.00557
FeM2   0.00000   0.17890   0.00000   0.00250   0.00697
MgM2   0.00000   0.17890   0.00000   0.99660   0.00697
MnM2   0.00000   0.17890   0.00000   0.00080   0.00697
FeM3   0.00000   0.00000   0.00000   0.00250   0.00583
MgM3   0.00000   0.00000   0.00000   0.99660   0.00583
MnM3   0.00000   0.00000   0.00000   0.00080   0.00583
CaM4   0.00000   0.27800   0.50000   0.54900   0.01102
NaM4   0.00000   0.27800   0.50000   0.37600   0.01102
SiT1   0.27670   0.08480   0.30050   0.98590   0.00456
AlT1   0.27670   0.08480   0.30050   0.00230   0.00456
TiT1   0.27670   0.08480   0.30050   0.00030   0.00456
SiT2   0.28540   0.17160   0.80560   0.98590   0.00519
AlT2   0.28540   0.17160   0.80560   0.00230   0.00519
TiT2   0.28540   0.17160   0.80560   0.00030   0.00519