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(4)
;
_database_code_amcsd 0006467
_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 9.966
_cell_length_b 18.066
_cell_length_c 5.279
_cell_angle_alpha 90
_cell_angle_beta 104.40
_cell_angle_gamma 90
_cell_volume 920.601
_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   0.11000   0.04825
KA2/m   0.00000   0.50000   0.00000   0.07000   0.04825
NaAm   0.02720   0.50000   0.07630   0.11000   0.06244
KAm   0.02720   0.50000   0.07630   0.07000   0.06244
NaA2   0.00000   0.46790   0.00000   0.11000   0.02356
KA2   0.00000   0.46790   0.00000   0.07000   0.02356
MgM1   0.00000   0.08880   0.50000   0.93000   0.00709
FeM1   0.00000   0.08880   0.50000   0.07000   0.00709
MgM2   0.00000   0.18060   0.00000   0.54000   0.00811
AlM2   0.00000   0.18060   0.00000   0.03000   0.00811
MnM2   0.00000   0.18060   0.00000   0.41000   0.00811
FeM2   0.00000   0.18060   0.00000   0.02000   0.00811
MgM3   0.00000   0.00000   0.00000   0.98000   0.00684
FeM3   0.00000   0.00000   0.00000   0.02000   0.00684
NaM4   0.00000   0.27680   0.50000   0.22500   0.01254
MgM4   0.00000   0.27680   0.50000   0.01250   0.01254
CaM4   0.00000   0.27680   0.50000   0.23000   0.01254
MnM4   0.00000   0.27680   0.50000   0.03250   0.01254
NaM4*   0.00000   0.26040   0.50000   0.22500   0.01570
MgM4*   0.00000   0.26040   0.50000   0.01250   0.01570
CaM4*   0.00000   0.26040   0.50000   0.23000   0.01570
MnM4*   0.00000   0.26040   0.50000   0.03250   0.01570
SiT1   0.27740   0.08450   0.29500   0.99250   0.00595
AlT1   0.27740   0.08450   0.29500   0.00750   0.00595
SiT2   0.28600   0.17070   0.80010   0.99250   0.00621
AlT2   0.28600   0.17070   0.80010   0.00750   0.00621
H   0.18810   0.00000   0.76400   0.82500   0.02672
O1   0.11170   0.08540   0.21810   1.00000   0.00773
O2   0.11950   0.16970   0.72350   1.00000   0.00874
O3   0.10660   0.00000   0.71470   0.82500   0.00963
F   0.10660   0.00000   0.71470   0.17500   0.00963
O4   0.36210   0.24710   0.79270   1.00000   0.01191
O5   0.34450   0.13010   0.08980   1.00000   0.01026
O6   0.34160   0.11630   0.58890   1.00000   0.01051
O7   0.33580   0.00000   0.29110   1.00000   0.01203