data_global
_chemical_name_mineral 'Laumontite'
loop_
_publ_author_name
'Lee Y'
'Hriljac J A'
'Vogt T'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 31 
_journal_year 2004
_journal_page_first 421
_journal_page_last 428
_publ_section_title
;
 Pressure-induced migration of zeolitic water in laumontite
 Sample: Pleasant Valley, Connecticut, NMNH R4159; P = 2.4 GPa
;
_database_code_amcsd 0008873
_chemical_formula_sum 'Ca Al2 Si4 O16.5 H9'
_cell_length_a 14.7204
_cell_length_b 13.1084
_cell_length_c 7.4080
_cell_angle_alpha 90
_cell_angle_beta 110.512
_cell_angle_gamma 90
_cell_volume 1338.825
_exptl_crystal_density_diffrn      2.379
_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
Ca   0.27700   0.50000   0.70900   1.00000   0.01300
Al   0.13080   0.31110   0.73480   1.00000   0.01300
Si1   0.24440   0.38150   0.16640   1.00000   0.01300
Si2   0.08150   0.38660   0.32000   1.00000   0.01300
O1   0.26300   0.50000   0.23000   1.00000   0.01300
O2   0.21500   0.37000   0.93500   1.00000   0.01300
O3   0.13900   0.39000   0.55100   1.00000   0.01300
O4   0.15400   0.33900   0.21900   1.00000   0.01300
O5   0.34000   0.31600   0.28700   1.00000   0.01300
O6   0.04800   0.50000   0.23600   1.00000   0.01300
O7   0.01300   0.31300   0.74000   1.00000   0.01300
Wat1   0.00200   0.17500   0.06500   0.50000   0.01300
Wat2   0.43800   0.50000   0.15300   1.00000   0.01300
Wat5   0.50000   0.57600   0.50000   0.50000   0.01300
Wat8   0.12200   0.12600   0.36900   1.00000   0.01300