data_global
_chemical_name_mineral 'Sursassite'
loop_
_publ_author_name
'Nagashima M'
'Akasaka M'
'Minakawa T'
'Libowitzky E'
'Armbruster T'
_journal_name_full 'American Mineralogist'
_journal_volume 94 
_journal_year 2009
_journal_page_first 1440
_journal_page_last 1449
_publ_section_title
;
 Sursassite: hydrogen bonding, cation order, and pumpellyite intergrowth
 Sample Number: 3
;
_database_code_amcsd 0004988
_chemical_compound_source 'Kamisugai, Japan'
_chemical_formula_sum 'Mn2 Al3 Si3 O14 H3'
_cell_length_a 8.7278
_cell_length_b 5.8065
_cell_length_c 9.8121
_cell_angle_alpha 90
_cell_angle_beta 109.060
_cell_angle_gamma 90
_cell_volume 469.996
_exptl_crystal_density_diffrn      3.548
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mn1   0.17060   0.25000   0.31322
Mn2   0.27630   0.25000   0.67528
Al1   0.50000   0.00000   0.50000
Al2   0.50000   0.00000   0.00000
Al3   0.00000   0.50000   0.00000
Si1   0.30710   0.75000   0.19060
Si2   0.20710   0.75000   0.80720
Si3   0.15320   0.75000   0.49520
O1   0.25660   0.51300   0.50040
O2   0.19080   0.52580   0.16280
O3   0.31510   0.51910   0.83280
O4   0.41420   0.75000   0.08000
O5   0.44920   0.75000   0.34920
O-H6   0.08410   0.25000   0.92830
O-H7   0.43730   0.25000   0.36820
O8   0.07260   0.75000   0.89380
O9   0.08860   0.75000   0.63690
O10  -0.01310   0.75000   0.35690
O-H11   0.41060   0.25000   0.06960