data_global
_amcsd_formula_title 'Na2Mg(SO4)2*16H2O'
loop_
_publ_author_name
'Leftwich K'
'Bish D L'
'Chen C H'
_journal_name_full 'American Mineralogist'
_journal_volume 98 
_journal_year 2013
_journal_page_first 1772
_journal_page_last 1778
_publ_section_title
;
 Crystal structure and hydration/dehydration behavior of Na2Mg(SO4)2*16H2O:
 A new hydrate phase observed under Mars-relevant conditions
;
_database_code_amcsd 0020105
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Na2 Mg S2 O24 H32'
_cell_length_a 6.559
_cell_length_b 6.628
_cell_length_c 14.441
_cell_angle_alpha 87.46
_cell_angle_beta 79.68
_cell_angle_gamma 65.85
_cell_volume 563.287
_exptl_crystal_density_diffrn      1.623
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na   0.24840   0.94830   0.04994   0.01700
Mg   0.00000   0.00000   0.50000   0.01400
S   0.76110   0.60750   0.25526   0.01200
O1   0.70230   0.84710   0.24670   0.01700
O2   0.63590   0.56980   0.34490   0.01800
O3   0.00800   0.48990   0.25370   0.01700
O4   0.69960   0.52500   0.17570   0.01900
O5   0.32130   0.97450   0.44640   0.01900
O6  -0.03070   0.95050   0.36230   0.02100
O7   0.12160   0.66750   0.52020   0.01900
O8   0.29300   0.59230   0.11410   0.01900
O9   0.33240   0.25160  -0.00480   0.02100
O10   0.16140   0.90570  -0.10040   0.01900
O11   0.25170   0.03900   0.21020   0.01900
O12   0.33520   0.36410   0.37090   0.02200
H1   0.28800   0.35100  -0.05700   0.05000
H2   0.39800   0.99400   0.23000   0.05000
H3   0.20200   0.60300   0.57200   0.05000
H4   0.20400   0.98900  -0.15100   0.05000
H5   0.44600   0.84400   0.41500   0.05000
H6   0.42500   0.56200   0.14200   0.05000
H7   0.28600   0.37700   0.03900   0.05000
H8  -0.15400   0.94800   0.33500   0.05000
H9   0.45700   0.40900   0.34700   0.05000
H10   0.22400   0.42800   0.33100   0.05000
H11   0.34700   0.10000   0.41900   0.05000
H12   0.07000   0.96600   0.30800   0.05000
H13   0.18800   0.58100   0.16700   0.05000
H14   0.20200   0.56400   0.46700   0.05000
H15   0.17500   0.19800   0.22400   0.05000
H16   0.19800   0.76700  -0.13100   0.05000