data_9004617
_chemical_name 'Winchite'
loop_
_publ_author_name
'Sokolova E V'
'Hawthorne F C'
'Gorbatova V'
'McCammon C'
'Schneider J'
_journal_name_full "The Canadian Mineralogist"
_journal_volume 39
_journal_year 2001
_journal_page_first 171
_journal_page_last 177
_publ_section_title
;
 Ferrian winchite from the Ilmen mountains, southern Urals,
 Russia and some problems with the current scheme for amphibole nomenclature
 Locality: Ilmen mountains, southern Urals, Russia
 Note: x-coordinate of T1 and all coordinates of O6
 adjusted to match reported bond lengths
;
_chemical_formula_sum 'K.13 (Ca.66 Na1.34) Mg2.79 Fe1.92 Al.32 Ti.01 Mn.07 Si7.8
_cell_length_a 9.8339
_cell_length_b 18.0357
_cell_length_c 5.2974
_cell_angle_alpha 90
_cell_angle_beta 104.195
_cell_angle_gamma 90
_cell_volume 910.866
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_symmetry_equiv_pos_as_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_Uiso_or_equiv
KA   0.00000   0.50000   0.00000   0.13000   0.02533
CaM4   0.00000   0.27610   0.50000   0.33000   0.01773
NaM4   0.00000   0.27610   0.50000   0.67000   0.01773
MgM1   0.00000   0.08870   0.50000   1.00000   0.00760
Fe3+M2   0.00000   0.17840   0.00000   0.46000   0.00760
Fe2+M2   0.00000   0.17840   0.00000   0.43500   0.00760
AlM2   0.00000   0.17840   0.00000   0.10000   0.00760
TiM2   0.00000   0.17840   0.00000   0.00500   0.00760
MgM3   0.00000   0.00000   0.00000   0.79000   0.00380
Fe2+M3   0.00000   0.00000   0.00000   0.13000   0.00380
MnM3   0.00000   0.00000   0.00000   0.07000   0.00380
SiT1   0.28500   0.08580   0.30200   0.97000   0.01267
AlT1   0.28500   0.08580   0.30200   0.03000   0.01267
SiT2   0.28900   0.17460   0.80100   1.00000   0.01013
O1   0.11100   0.08900   0.21600   1.00000   0.00887
O2   0.11900   0.17400   0.73000   1.00000   0.01773
O-H3   0.10700   0.00000   0.70900   0.88500   0.00760
F3   0.10700   0.00000   0.70900   0.11500   0.00760
O4   0.36600   0.25130   0.78900   1.00000   0.02153
O5   0.35100   0.12540   0.07700   1.00000   0.01520
O6   0.33400   0.11600   0.60200   1.00000   0.02026
O7   0.34500   0.00000   0.31900   1.00000   0.01646