data_global
_chemical_name_mineral 'Richterite'
loop_
_publ_author_name
'Oberti R'
'Hawthorne F C'
'Ungaretti L'
'Cannillo E'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 5 
_journal_year 1993
_journal_page_first 43
_journal_page_last 51
_publ_section_title
;
 The behaviour of Mn in amphiboles: Mn in richerite
 Sample: MR(3)
;
_database_code_amcsd 0006466
_chemical_formula_sum 'Na1.5 K.24 Mg4.28 Fe.24 Al.2 Mn.75 Ca.88 Si7.84 H1.7 O23.7 F.3'
_cell_length_a 9.909
_cell_length_b 18.030
_cell_length_c 5.278
_cell_angle_alpha 90
_cell_angle_beta 104.23
_cell_angle_gamma 90
_cell_volume 914.030
_exptl_crystal_density_diffrn      3.088
_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
NaA2/m   0.00000   0.50000   0.00000   0.13800   0.03597
KA2/m   0.00000   0.50000   0.00000   0.04800   0.03597
NaAm   0.03510   0.50000   0.08560   0.13800   0.03508
KAm   0.03510   0.50000   0.08560   0.04800   0.03508
NaA2   0.00000   0.46660   0.00000   0.13800   0.03673
KA2   0.00000   0.46660   0.00000   0.04800   0.03673
MgM1   0.00000   0.08880   0.50000   0.95000   0.00659
FeM1   0.00000   0.08880   0.50000   0.05000   0.00659
MgM2   0.00000   0.17980   0.00000   0.69000   0.00773
AlM2   0.00000   0.17980   0.00000   0.02000   0.00773
MnM2   0.00000   0.17980   0.00000   0.23000   0.00773
FeM2   0.00000   0.17980   0.00000   0.06000   0.00773
MgM3   0.00000   0.00000   0.00000   0.98000   0.00633
FeM3   0.00000   0.00000   0.00000   0.02000   0.00633
NaM4   0.00000   0.27560   0.50000   0.20250   0.01444
MgM4   0.00000   0.27560   0.50000   0.00500   0.01444
CaM4   0.00000   0.27560   0.50000   0.22000   0.01444
MnM4   0.00000   0.27560   0.50000   0.07250   0.01444
NaM4*   0.00000   0.25580   0.50000   0.20250   0.01127
MgM4*   0.00000   0.25580   0.50000   0.00500   0.01127
CaM4*   0.00000   0.25580   0.50000   0.22000   0.01127
MnM4*   0.00000   0.25580   0.50000   0.07250   0.01127
SiT1   0.27860   0.08470   0.29440   0.98000   0.00532
AlT1   0.27860   0.08470   0.29440   0.02000   0.00532
SiT2   0.28740   0.17090   0.80020   0.98000   0.00583
AlT2   0.28740   0.17090   0.80020   0.02000   0.00583
H   0.18360   0.00000   0.74680   0.85000   0.03926
O1   0.11150   0.08580   0.21710   1.00000   0.00697
O2   0.11970   0.17020   0.72470   1.00000   0.00798
O3   0.10710   0.00000   0.71380   0.85000   0.00874
F   0.10710   0.00000   0.71380   0.15000   0.00874
O4   0.36380   0.24760   0.79040   1.00000   0.01216
O5   0.34620   0.13110   0.09060   1.00000   0.01077
O6   0.34250   0.11600   0.58980   1.00000   0.01077
O7   0.33760   0.00000   0.28600   1.00000   0.01191