data_global
_chemical_name_mineral 'Levyne-Ca'
loop_
_publ_author_name
'Gatta G D'
'Comodi P'
'Zanazzi P F'
'Ballaran T B'
_journal_name_full 'American Mineralogist'
_journal_volume 90 
_journal_year 2005
_journal_page_first 645
_journal_page_last 652
_publ_section_title
;
 Anomalous elastic behavior and high-pressure structural evolution of zeolite levyne
 P = .79 GPa
;
_database_code_amcsd 0003751
_chemical_compound_source 'Beech Creek, Grant County, Oregon'
_chemical_formula_sum 'Ca2.28 K.56 Na.4 (Si12.426 Al5.574) O60.78 H49.56'
_cell_length_a 13.196
_cell_length_b 13.196
_cell_length_c 22.895
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 3452.676
_exptl_crystal_density_diffrn      2.372
_symmetry_space_group_name_H-M 'R -3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  'y,x,-z'
  '2/3+y,1/3+x,1/3-z'
  '1/3+y,2/3+x,2/3-z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-x,-x+y,-z'
  '2/3-x,1/3-x+y,1/3-z'
  '1/3-x,2/3-x+y,2/3-z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  'x-y,-y,-z'
  '2/3+x-y,1/3-y,1/3-z'
  '1/3+x-y,2/3-y,2/3-z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-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
Ca1   0.00000   0.00000   0.13600   0.65000   0.02600
Ca2   0.00000   0.00000   0.28000   0.49000   0.04000
K4   0.00000   0.00000   0.43700   0.28000   0.01000
Na5   0.00000   0.00000   0.50000   0.40000   0.08000
Si1   0.00040   0.23470   0.06780   0.63700   0.01200
Al1   0.00040   0.23470   0.06780   0.36300   0.01200
Si2   0.24220   0.00000   0.50000   0.79700   0.00600
Al2   0.24220   0.00000   0.50000   0.20300   0.00600
O1   0.02800   0.34800   0.10850   1.00000   0.04300
O2   0.09760  -0.09750   0.07800   1.00000   0.04100
O3   0.12810  -0.12810  -0.08600   1.00000   0.03300
O4   0.27300   0.00000   0.00000   1.00000   0.02900
O5   0.21960  -0.21960   0.17430   1.00000   0.01400
Wat1   0.15200   0.07600   0.20100   1.00000   0.04200
Wat2   0.11900   0.23900   0.28500   1.00000   0.08000
Wat3   0.15600   0.07800   0.35400   1.00000   0.07000
Wat4   0.21900   0.43800   0.28600   0.13000   0.01000