data_global
_amcsd_formula_title 'Mg3Si4O10(OH)2*H2O'
loop_
_publ_author_name
'Zanazzi P F'
'Comodi P'
'Nazzareni S'
'Rotiroti N'
'van Smaalen S'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 34 
_journal_year 2007
_journal_page_first 23
_journal_page_last 29
_publ_section_title
;
 Behavior of 10-A phase at low temperatures
 Sample: T = 293 K
;
_database_code_amcsd 0009050
_chemical_formula_sum 'Si4 Mg3 O13 H4'
_cell_length_a 5.3007
_cell_length_b 9.186
_cell_length_c 10.185
_cell_angle_alpha 90
_cell_angle_beta 99.97
_cell_angle_gamma 90
_cell_volume 488.441
_exptl_crystal_density_diffrn      2.701
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-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
Si   0.57670   0.16680   0.23050   1.00000   0.01290
Mg1   0.00000   0.50000   0.50000   1.00000   0.01310
Mg2   0.00000   0.83380   0.50000   1.00000   0.01320
O1   0.80980   0.24850   0.17570   1.00000   0.01690
O2   0.55550   0.00000   0.17560   1.00000   0.01680
O3   0.63030   0.16690   0.39160   1.00000   0.01170
O-H4   0.13220   0.00000   0.39500   1.00000   0.01270
Wat5   0.01400   0.00000   0.02600   0.50000   0.03000