data_global
_chemical_name_mineral 'Ohmilite'
loop_
_publ_author_name
'Mizota T'
'Komatsu M'
'Chihara K'
_journal_name_full 'Mineralogical Journal'
_journal_volume 7 
_journal_year 1973
_journal_page_first 302
_journal_page_last 305
_publ_section_title
;
 On the crystal structure of Sr3TiSi4O12(OH)*2H2O, a new mineral
 Note: paper is missing data for O8
;
_database_code_amcsd 0014415
_chemical_compound_source 'Ohmi District, Niigata Prefecture, Central Japan'
_chemical_formula_sum 'Sr3 Ti Si4 O15 H5'
_cell_length_a 10.958
_cell_length_b 7.778
_cell_length_c 7.799
_cell_angle_alpha 90
_cell_angle_beta 100.90
_cell_angle_gamma 90
_cell_volume 652.727
_exptl_crystal_density_diffrn      3.399
_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
_atom_site_U_iso_or_equiv
Sr1   0.11060   0.25000   0.35300   0.00228
Sr2   0.41650   0.25000   0.71750   0.00291
Sr3   0.26670   0.75000   0.39190   0.00215
Ti   0.00000   0.00000   0.00000   0.00988
Si1   0.29880   0.45280   0.11630  -0.00051
Si2   0.20580   0.54850   0.74210  -0.00076
O1   0.29810   0.25000   0.16880   0.00253
O2   0.16540   0.53000   0.14810   0.00038
O3   0.40990   0.54510   0.24170   0.00342
O4   0.30490   0.16010   0.90800   0.00215
O5   0.23450   0.45650   0.56950   0.00241
O6   0.06410   0.52890   0.77510   0.00279
O7   0.24100   0.75000   0.73690   0.00684
O-H   0.02350   0.25000   0.00290   0.01165
Wat1   0.02810   0.75000   0.40910   0.00633
Wat2   0.50850   0.25000   0.43110   0.01127