data_global
_amcsd_formula_title 'Sn6SiO8(OH2)'
loop_
_publ_author_name
'Locock A J'
'Ramik R A'
'Back M E'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 44 
_journal_year 2006
_journal_page_first 1457
_journal_page_last 1467
_publ_section_title
;
 The structures of two novel Sn2+ oxysalts found with romarchite and
 hydroromarchite as corrosion products of pewter artifacts
;
_database_code_amcsd 0006131
_chemical_formula_sum 'Sn6.54 S O10 H2'
_cell_length_a 14.0071
_cell_length_b 12.5016
_cell_length_c 14.5030
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 2539.637
_exptl_crystal_density_diffrn      5.076
_symmetry_space_group_name_H-M 'P b c a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,1/2+z'
  '-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-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_U_iso_or_equiv
Sn1   0.01749   0.82313   0.33891   1.00000   0.02042
Sn2   0.01109   0.67521   0.54400   1.00000   0.02078
Sn3   0.26344   0.83072   0.45157   1.00000   0.02085
Sn4   0.25365   0.82371   0.16166   1.00000   0.01995
Sn5   0.38223   0.59124   0.45298   1.00000   0.02045
Sn6   0.39966   0.58021   0.15603   1.00000   0.02378
S   0.14065   0.57227   0.18255   1.00000   0.01940
O1   0.12860   0.46690   0.13490   1.00000   0.02710
O2   0.21670   0.63320   0.12840   1.00000   0.02820
O3   0.05200   0.62930   0.18140   1.00000   0.03540
O4   0.17730   0.55600   0.27720   1.00000   0.03950
O5   0.38450   0.74430   0.18980   1.00000   0.01470
O-H6   0.04510   0.65190   0.38510   1.00000   0.02040
O-H7   0.37960   0.74550   0.37500   1.00000   0.01700
O8  -0.01070   0.82270   0.47910   1.00000   0.01730
O9   0.38550   0.60960   0.01450   1.00000   0.01780
O10   0.27530   0.81560   0.02020   1.00000   0.01740
SnA1  -0.01600   0.67520   0.66240   0.09000   0.02490
SnA2   0.21880   0.82430   0.33840   0.09000   0.03180
SnA3   0.33370   0.58070   0.34280   0.09000   0.02580
SnA4   0.22620   0.82500   0.04230   0.09000   0.02800
SnA5   0.35750   0.59080   0.04710   0.09000   0.02640
SnA6  -0.02630   0.83220   0.45210   0.09000   0.02800