#------------------------------------------------------------------------------
#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9009493.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_9009493
_chemical_name 'Chayesite'
loop_
_publ_author_name
'Alietti E'
'Brigatti M F'
'Capedri S'
'Poppi L'
_journal_name_full "Mineralogical Magazine"
_journal_volume 58
_journal_year 1994
_journal_page_first 655
_journal_page_last 662
_publ_section_title
;
 The roedderite-chayesite series from Spanish lamproites:
 crystal chemical characterization
 Locality: Cancarix, Albacete province, Spain
;
_chemical_formula_sum 'K.93 Na.31 (Mg4.3 Fe.7) Si12 O30'
_cell_length_a 10.122
_cell_length_b 10.122
_cell_length_c 14.320
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1270.593
_symmetry_space_group_name_H-M 'P 6/m c c'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,1/2+z'
  'y,x,1/2-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,1/2+z'
  '-x,-x+y,1/2-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,1/2+z'
  'x-y,-y,1/2-z'
  '-x,-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
KC   0.00000   0.00000   0.25000   0.93000   0.02330
NaC   0.00000   0.00000   0.25000   0.07000   0.02330
NaB   0.33333   0.66667   0.00000   0.12000   0.02533
MgA   0.33333   0.66667   0.25000   0.86000   0.01596
Fe3+A   0.33333   0.66667   0.25000   0.14000   0.01596
MgT2   0.50000   0.50000   0.25000   0.86000   0.01381
Fe3+T2   0.50000   0.50000   0.25000   0.14000   0.01381
SiT1   0.23828   0.35296   0.39076   1.00000   0.01355
O1   0.12970   0.39380   0.00000   1.00000   0.02343
O2   0.21940   0.27770   0.13340   1.00000   0.02204
O3   0.15490   0.49650   0.17246   1.00000   0.01748