#------------------------------------------------------------------------------
#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9000157.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_9000157
_chemical_name 'Retzian'
loop_
_publ_author_name
'Moore P B'
_journal_name_full "American Mineralogist"
_journal_volume 52
_journal_year 1967
_journal_page_first 1603
_journal_page_last 1613
_publ_section_title
;
 Crystal chemistry of the basic manganese arsenate minerals 1. The crystal
 structures of flinkite, Mn2Mn(OH)4(AsO4) and retzian, Mn2Y(OH)4(AsO4)
;
_chemical_formula_sum 'Y As Mn2 O8 H4'
_cell_length_a 5.67
_cell_length_b 12.03
_cell_length_c 4.863
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 331.706
_symmetry_space_group_name_H-M 'P b a n'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,-y,z'
  '1/2-x,y,-z'
  '-x,1/2+y,z'
  'x,1/2-y,-z'
  '1/2+x,1/2+y,-z'
  '1/2-x,1/2-y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_Uiso_or_equiv
Y   0.25000   0.25000   0.00000   0.00076
As   0.75000   0.25000   0.50000   0.00557
Mn   0.25000   0.55480   0.00000   0.01026
O   0.57690   0.31980   0.30450   0.01381
O-H   0.57830   0.57700   0.20100   0.01368