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(2)
;
_database_code_amcsd 0006465
_chemical_formula_sum 'Na1.62 K.2 Mg4.28 Fe.24 Al.14 Mn.81 Ca.75 Si7.9 H1.66 O23.66 F.34'
_cell_length_a 9.892
_cell_length_b 18.027
_cell_length_c 5.278
_cell_angle_alpha 90
_cell_angle_beta 104.09
_cell_angle_gamma 90
_cell_volume 912.873
_exptl_crystal_density_diffrn      3.090
_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   0.14800   0.05015
KA2/m   0.00000   0.50000   0.00000   0.04000   0.05015
NaAm   0.03780   0.50000   0.08850   0.14800   0.04559
KAm   0.03780   0.50000   0.08850   0.04000   0.04559
NaA2   0.00000   0.46540   0.00000   0.14800   0.04369
KA2   0.00000   0.46540   0.00000   0.04000   0.04369
MgM1   0.00000   0.08870   0.50000   0.96000   0.00684
FeM1   0.00000   0.08870   0.50000   0.04000   0.00684
MgM2   0.00000   0.18000   0.00000   0.68000   0.00773
AlM2   0.00000   0.18000   0.00000   0.02000   0.00773
MnM2   0.00000   0.18000   0.00000   0.23000   0.00773
FeM2   0.00000   0.18000   0.00000   0.07000   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   0.27520   0.50000   0.22000   0.01456
MgM4   0.00000   0.27520   0.50000   0.00500   0.01456
CaM4   0.00000   0.27520   0.50000   0.18750   0.01456
MnM4   0.00000   0.27520   0.50000   0.08750   0.01456
NaM4*   0.00000   0.25780   0.50000   0.22000   0.01064
MgM4*   0.00000   0.25780   0.50000   0.00500   0.01064
CaM4*   0.00000   0.25780   0.50000   0.18750   0.01064
MnM4*   0.00000   0.25780   0.50000   0.08750   0.01064
SiT1   0.27890   0.08470   0.29320   0.98750   0.00545
AlT1   0.27890   0.08470   0.29320   0.01250   0.00545
SiT2   0.28760   0.17090   0.79910   0.98750   0.00608
AlT2   0.28760   0.17090   0.79910   0.01250   0.00608
H   0.19040   0.00000   0.74610   0.83000   0.00811
O1   0.11190   0.08580   0.21680   1.00000   0.00697
O2   0.11980   0.17010   0.72440   1.00000   0.00811
O3   0.10740   0.00000   0.71350   0.83000   0.00874
F   0.10740   0.00000   0.71350   0.17000   0.00874
O4   0.36380   0.24770   0.79030   1.00000   0.01267
O5   0.34640   0.13070   0.08850   1.00000   0.01102
O6   0.34260   0.11620   0.58770   1.00000   0.01115
O7   0.33780   0.00000   0.28580   1.00000   0.01229