data_global
_chemical_name_mineral 'Meridianiite'
loop_
_publ_author_name
'Fortes A D'
'Wood I G'
'Knight K S'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 35 
_journal_year 2008
_journal_page_first 207
_journal_page_last 221
_publ_section_title
;
 The crystal structure and thermal expansion tensor of MgSO4-11D2O (meridianiite)
 determined by neutron powder diffraction
 Note: T = 250 K
;
_database_code_amcsd 0009132
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Mg S O15 D22'
_cell_length_a 6.7508
_cell_length_b 6.8146
_cell_length_c 17.2924
_cell_angle_alpha 88.118
_cell_angle_beta 89.481
_cell_angle_gamma 62.6891
_cell_volume 706.446
_exptl_crystal_density_diffrn      1.601
_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
Mg1   0.00000   0.00000   0.00000   0.01910
Mg2   0.00000   0.00000   0.50000   0.01400
S   0.39440   0.32710   0.20130   0.02540
O1   0.31190   0.33730   0.12320   0.02250
O2   0.22480   0.43430   0.25400   0.04060
O3   0.52670   0.08850   0.22650   0.03270
O4   0.55310   0.41730   0.19970   0.03890
Ow1   0.66810   0.16330   0.00800   0.04070
Ow2   0.98970  -0.27170   0.05460   0.03520
Ow3   0.04530   0.10900   0.10470   0.03940
Ow4   0.14790  -0.10940   0.39440   0.02890
Ow5   0.80100  -0.15560   0.48390   0.04100
Ow6   0.76130   0.27870   0.44510   0.03400
Ow7   0.31570   0.39750   0.41150   0.02800
Ow8   0.60320  -0.24310   0.11840   0.02910
Ow9   0.56260  -0.14260   0.36020   0.02580
Ow10   0.83030   0.43360   0.30640   0.03430
Ow11   0.99500  -0.09850   0.24560   0.03670
D1a   0.56640   0.22990   0.04970   0.04820
D1b   0.56710   0.19330  -0.03450   0.04740
D2a   0.11470  -0.39930   0.07470   0.04630
D2b   0.85130  -0.26980   0.07550   0.04050
D3a   0.04040   0.04160   0.15310   0.03840
D3b   0.12440   0.19250   0.11040   0.04480
D4a   0.29690  -0.12300   0.38620   0.03140
D4b   0.08460  -0.08520   0.34420   0.03350
D5a   0.77520  -0.24190   0.52380   0.04400
D5b   0.71600  -0.14520   0.43910   0.03910
D6a   0.79400   0.32730   0.39720   0.04030
D6b   0.60680   0.30500   0.43770   0.03250
D7a   0.28000   0.40800   0.35860   0.03860
D7b   0.23010   0.55070   0.42730   0.05030
D8a   0.55660  -0.13110   0.15530   0.03800
D8b   0.58600  -0.36140   0.14320   0.04170
D9a   0.54100  -0.04500   0.31500   0.03400
D9b   0.65650  -0.28960   0.34060   0.03430
D10a   0.74520   0.41810   0.26610   0.04080
D10b   0.97040   0.41460   0.28390   0.04070
D11a   0.05950  -0.25240   0.24060   0.03940
D11b   0.83850  -0.04040   0.23890   0.04130