#------------------------------------------------------------------------------
#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9009233.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_9009233
_chemical_name 'Chamosite'
loop_
_publ_author_name
'Walker J R'
'Bish D L'
_journal_name_full "Clays and Clay Minerals"
_journal_volume 40
_journal_year 1992
_journal_page_first 319
_journal_page_last 322
_publ_section_title
;
 Application of Rietveld refinement techniques to a disordered IIb Mg-chamosite
 Locality: Lebanon, New Hampshire, USA
;
_chemical_formula_sum '(Mg2.518 Fe2.482) Al1.2 Si3.8 O18'
_cell_length_a 5.36982
_cell_length_b 9.3031
_cell_length_c 14.2610
_cell_angle_alpha 90.315
_cell_angle_beta 97.234
_cell_angle_gamma 90.022
_cell_volume 706.740
_symmetry_space_group_name_H-M 'C -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'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_Uiso_or_equiv
MgM1   0.00000   0.00000   0.00000   0.53800   0.00200
FeM1   0.00000   0.00000   0.00000   0.46200   0.00200
MgM2   0.01410   0.33480   0.00270   0.49600   0.00200
FeM2   0.01410   0.33480   0.00270   0.50400   0.00200
MgM3   0.00320   0.16830   0.50040   0.49400   0.00200
FeM3   0.00320   0.16830   0.50040   0.50600   0.00200
AlM4   0.00000   0.50000   0.50000   1.00000   0.00300
SiT1   0.24000   0.17000   0.19410   0.95000   0.00100
AlT1   0.24000   0.17000   0.19410   0.05000   0.00100
SiT2   0.73000   0.99800   0.19450   0.95000   0.00100
AlT2   0.73000   0.99800   0.19450   0.05000   0.00100
O1   0.19100   0.16350   0.07890   1.00000   0.01100
O2   0.70500   0.99800   0.07560   1.00000   0.01100
O3   0.23100   0.33600   0.23740   1.00000   0.01100
O4   0.52800   0.11800   0.23020   1.00000   0.01100
O5   0.01800   0.06100   0.23060   1.00000   0.01100
O6   0.68900   0.33120   0.07420   1.00000   0.01100
O7   0.14400   0.99900   0.43000   1.00000   0.01100
O8   0.14300   0.33610   0.42860   1.00000   0.01100
O9   0.64300   0.16270   0.43110   1.00000   0.01100