data_global
_amcsd_formula_title 'H2 Mg3 O10 S2'
loop_
_publ_author_name
'Fleet M'
'Knipe S'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 53 
_journal_year 1997
_journal_page_first 358
_journal_page_last 363
_publ_section_title
;
 Structure of magnesium hydroxide sulfate (2(Mg S O4) . (Mg (O H)2)) and
 solid solution in magnesium hydroxide sulfate hydrate and caminite
 _cod_database_code 1100099
;
_database_code_amcsd 0018265
_chemical_formula_sum 'Mg3 S2 O10'
_cell_length_a 7.454
_cell_length_b 7.454
_cell_length_c 12.885
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 715.918
_exptl_crystal_density_diffrn      2.756
_symmetry_space_group_name_H-M 'P 43 21 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,x,-z'
  '1/2-y,1/2+x,3/4+z'
  '1/2-x,1/2+y,3/4-z'
  '-x,-y,1/2+z'
  '-y,-x,1/2-z'
  '1/2+y,1/2-x,1/4+z'
  '1/2+x,1/2-y,1/4-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mg1   0.12390   0.12390   0.50000
Mg2   0.10070   0.35550   0.25618
S1   0.25060   0.99719   0.12740
O1   0.14160   0.10990   0.19430
O2   0.36960   0.87960   0.18970
O3   0.24170   0.48840   0.13780
O4   0.13510   0.87370   0.06690
O5   0.35550   0.11090   0.05860