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(5) using occupancies from MR(4)
;
_database_code_amcsd 0006468
_chemical_formula_sum 'Na1.45 K.35 Mg3.97 Fe.2 Al.12 Mn.95 Ca.92 Si7.94 H1.65 O23.65 F.35'
_cell_length_a 9.974
_cell_length_b 18.078
_cell_length_c 5.282
_cell_angle_alpha 90
_cell_angle_beta 104.36
_cell_angle_gamma 90
_cell_volume 922.641
_exptl_crystal_density_diffrn      3.084
_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   0.11000   0.04762
KA2/m   0.00000   0.50000   0.00000   0.07000   0.04762
NaAm   0.03310   0.50000   0.08160   0.11000   0.05788
KAm   0.03310   0.50000   0.08160   0.07000   0.05788
NaA2   0.00000   0.47110   0.00000   0.11000   0.02736
KA2   0.00000   0.47110   0.00000   0.07000   0.02736
MgM1   0.00000   0.08880   0.50000   0.93000   0.00646
FeM1   0.00000   0.08880   0.50000   0.07000   0.00646
MgM2   0.00000   0.18070   0.00000   0.54000   0.00760
AlM2   0.00000   0.18070   0.00000   0.03000   0.00760
MnM2   0.00000   0.18070   0.00000   0.41000   0.00760
FeM2   0.00000   0.18070   0.00000   0.02000   0.00760
MgM3   0.00000   0.00000   0.00000   0.98000   0.00621
FeM3   0.00000   0.00000   0.00000   0.02000   0.00621
NaM4   0.00000   0.27690   0.50000   0.22500   0.01191
MgM4   0.00000   0.27690   0.50000   0.01250   0.01191
CaM4   0.00000   0.27690   0.50000   0.23000   0.01191
MnM4   0.00000   0.27690   0.50000   0.03250   0.01191
NaM4*   0.00000   0.25780   0.50000   0.22500   0.01241
MgM4*   0.00000   0.25780   0.50000   0.01250   0.01241
CaM4*   0.00000   0.25780   0.50000   0.23000   0.01241
MnM4*   0.00000   0.25780   0.50000   0.03250   0.01241
SiT1   0.27730   0.08450   0.29490   0.99250   0.00532
AlT1   0.27730   0.08450   0.29490   0.00750   0.00532
SiT2   0.28600   0.17070   0.80000   0.99250   0.00570
AlT2   0.28600   0.17070   0.80000   0.00750   0.00570
H   0.19390   0.00000   0.75910   0.82500   0.02761
O1   0.11170   0.08540   0.21790   1.00000   0.00735
O2   0.11950   0.16970   0.72300   1.00000   0.00849
O3   0.10660   0.00000   0.71490   0.82500   0.00874
F   0.10660   0.00000   0.71490   0.17500   0.00874
O4   0.36220   0.24700   0.79250   1.00000   0.01178
O5   0.34430   0.13010   0.08970   1.00000   0.01013
O6   0.34140   0.11640   0.58880   1.00000   0.01039
O7   0.33570   0.00000   0.29140   1.00000   0.01153