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 = ambient
;
_database_code_amcsd 0008867
_chemical_formula_sum 'Ca Al2 Si4 O15.02 H6.04'
_cell_length_a 14.7514
_cell_length_b 13.0827
_cell_length_c 7.5648
_cell_angle_alpha 90
_cell_angle_beta 111.997
_cell_angle_gamma 90
_cell_volume 1353.640
_exptl_crystal_density_diffrn      2.222
_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   0.28200   0.50000   0.77000   1.00000   0.00700
Al   0.13170   0.31040   0.72850   1.00000   0.00700
Si1   0.24120   0.37980   0.16440   1.00000   0.00700
Si2   0.08790   0.38430   0.33460   1.00000   0.00700
O1   0.25900   0.50000   0.21700   1.00000   0.00700
O2   0.21500   0.36400   0.93800   1.00000   0.00700
O3   0.15200   0.39000   0.56100   1.00000   0.00700
O4   0.15200   0.33800   0.22000   1.00000   0.00700
O5   0.33900   0.31800   0.29000   1.00000   0.00700
O6   0.05600   0.50000   0.26100   1.00000   0.00700
O7   0.01000   0.31700   0.71000   1.00000   0.00700
Wat2   0.40900   0.44800   0.01600   0.50000   0.00700
Wat5   0.50000   0.46300   0.50000   0.50000   0.00700
Wat8   0.13100   0.09400   0.33300   0.76000   0.00700