data_global
_chemical_name_mineral 'Winchite'
loop_
_publ_author_name
'Ghose S'
'Kersten M'
'Langer K'
'Rossi G'
'Ungaretti L'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 13 
_journal_year 1986
_journal_page_first 291
_journal_page_last 305
_publ_section_title
;
 Crystal field spectra and Jahn Teller effect of Mn3+
 in clinopyroxene and clinoamphiboles from India
;
_database_code_amcsd 0007426
_chemical_formula_sum 'Na2.24 K.169 Mg3.37 Al.23 Fe1.31 Mn.06 Li.13 Ca.27 Si7.9 O24 H2'
_cell_length_a 9.7573
_cell_length_b 17.9026
_cell_length_c 5.2886
_cell_angle_alpha 90
_cell_angle_beta 103.814
_cell_angle_gamma 90
_cell_volume 897.098
_exptl_crystal_density_diffrn      3.118
_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
NaA   0.00000   0.50000   0.00000   0.17000   0.05003
KA   0.00000   0.50000   0.00000   0.05700   0.05003
NaAM   0.04650   0.50000   0.10320   0.08500   0.03154
KAM   0.04650   0.50000   0.10320   0.02800   0.03154
NaA2   0.00000   0.46180   0.00000   0.08500   0.02761
KA2   0.00000   0.46180   0.00000   0.02800   0.02761
MgM1   0.00000   0.08844   0.50000   0.93500   0.00621
AlM1   0.00000   0.08844   0.50000   0.06500   0.00621
MgM2   0.00000   0.18107   0.00000   0.31500   0.00532
FeM2   0.00000   0.18107   0.00000   0.65500   0.00532
MnM2   0.00000   0.18107   0.00000   0.03000   0.00532
MgM3   0.00000   0.00000   0.00000   0.87000   0.00557
LiM3   0.00000   0.00000   0.00000   0.13000   0.00557
CaM4   0.00000   0.27686   0.50000   0.13500   0.01279
NaM4   0.00000   0.27686   0.50000   0.86500   0.01279
SiT1   0.28098   0.08571   0.29319   0.98750   0.00456
AlT1   0.28098   0.08571   0.29319   0.01250   0.00456
SiT2   0.28881   0.17130   0.80189   0.98750   0.00456
AlT2   0.28881   0.17130   0.80189   0.01250   0.00456
O1   0.11121   0.08809   0.21343   1.00000   0.00633
O2   0.11810   0.16971   0.73248   1.00000   0.00671
O3   0.10901   0.00000   0.70951   1.00000   0.00621
O4   0.36341   0.25030   0.79915   1.00000   0.00937
O5   0.34935   0.13018   0.08530   1.00000   0.00887
O6   0.34224   0.11969   0.58283   1.00000   0.00836
O7   0.33651   0.00000   0.29600   1.00000   0.00975
H   0.18440   0.00000   0.74570   1.00000   0.02622