data_global
_chemical_name_mineral 'Lawsonite'
loop_
_publ_author_name
'Armbruster T'
'Oberhansli R'
'Bermanec V'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 4 
_journal_year 1992
_journal_page_first 17
_journal_page_last 22
_publ_section_title
;
 Crystal structure of SrMn2(Si2O7)(OH)2.H2O, a new mineral of the lawsonite type
;
_database_code_amcsd 0006433
_chemical_formula_sum 'Sr Mn2 Si2 O10 H4'
_cell_length_a 6.255
_cell_length_b 9.034
_cell_length_c 13.397
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 757.033
_exptl_crystal_density_diffrn      3.665
_symmetry_space_group_name_H-M 'C m c m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,y,z'
  '1/2-x,1/2+y,z'
  'x,-y,-z'
  '1/2+x,1/2-y,-z'
  'x,y,1/2-z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,1/2+z'
  '1/2-x,1/2-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2-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
Sr   0.00000   0.31140   0.25000   1.00000   0.01634
Mn   0.25000   0.25000   0.00000   1.00000   0.01229
Si   0.00000  -0.03060   0.13220   1.00000   0.01178
O1   0.00000   0.02200   0.25000   1.00000   0.01646
O2   0.28500   0.37070   0.11600   1.00000   0.01900
O3   0.00000   0.12590   0.07470   1.00000   0.01267
O-H4   0.00000   0.36800   0.54130   1.00000   0.01900
Wat5   0.04300   0.60700   0.25000   0.50000   0.02153
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Sr 0.02670 0.01420 0.00820 0.00000 0.00000 0.00000
Mn 0.01440 0.01260 0.01000 -0.00290 0.00430 -0.00300
Si 0.01700 0.01100 0.00700 0.00000 0.00000 0.00000
O1 0.02400 0.01800 0.00900 0.00000 0.00000 0.00000
O2 0.02400 0.01500 0.01600 -0.00500 0.00500 -0.00500
O3 0.01700 0.00800 0.01200 0.00000 0.00000 -0.00200
O-H4 0.02200 0.01700 0.01600 0.00000 0.00000 -0.00700