data_global
_chemical_name_mineral 'Murmanite'
loop_
_publ_author_name
'Khalilov A D'
'Mamedov K S'
'Makarov E S'
'Pyanzina L A'
_journal_name_full 'Doklady Akademii Nauk SSSR'
_journal_volume 161 
_journal_year 1965
_journal_page_first 1409
_journal_page_last 1411
_publ_section_title
;
 Crystal structure of murmanite
;
_database_code_amcsd 0012444
_chemical_formula_sum 'Na2 Mn Ti3 (O22 Si4) H12'
_cell_length_a 5.50
_cell_length_b 7.00
_cell_length_c 11.94
_cell_angle_alpha 96.00
_cell_angle_beta 100.433
_cell_angle_gamma 88.916
_cell_volume 449.613
_exptl_crystal_density_diffrn      2.663
_symmetry_space_group_name_H-M 'P 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na1   0.99000   0.51000   0.00000
Na2   0.49200   0.77500   0.00000
Mn   0.96600   0.00500   0.00200
Ti1   0.51200   0.26000   0.01000
Ti2   0.92500   0.79500   0.25300
Ti3   0.52500   0.94500   0.72000
O-H3   0.86200   0.22000   0.09100
O-H4   0.86200   0.78700   0.10000
Si1   0.42500   0.09700   0.23300
Si2   0.42500   0.55500   0.23000
Si3   0.07500   0.21000   0.75000
Si4   0.08500   0.72500   0.74500
O1   0.35000   0.06000   0.08500
O2   0.35000   0.54200   0.08400
O5   0.42500   0.27000   0.25000
O6   0.17500   0.00000   0.27500
O7   0.17500   0.60500   0.27100
O8   0.65200   0.00000   0.29900
O9   0.66200   0.60000   0.27500
Wat10   0.94500   0.30000   0.43900
Wat11   0.98500   0.80800   0.45500
Wat12   0.51000   0.45000   0.54300
Wat13   0.50000   0.95000   0.51700
O14   0.30300   0.21000   0.70400
O15   0.31500   0.75500   0.71600
O18   0.83500   0.20000   0.72700
O17   0.82300   0.71000   0.69500
O1?   0.06500   0.47500   0.75000
O19   0.11000   0.20000   0.89500
O20   0.12500   0.76300   0.90000
O-H21   0.62300   0.49700   0.89300
O-H22   0.62500   0.00000   0.90500