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 = .0001 GPa decompressed
;
_database_code_amcsd 0003753
_chemical_compound_source 'Beech Creek, Grant County, Oregon'
_chemical_formula_sum 'Ca2.16 K.5 Na.1 (Si12.426 Al5.574) O61.44 H50.88'
_cell_length_a 13.327
_cell_length_b 13.327
_cell_length_c 22.861
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 3516.338
_exptl_crystal_density_diffrn      2.326
_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   0.13640   0.77000   0.03100
Ca2   0.00000   0.00000   0.28150   0.31000   0.05600
K4   0.00000   0.00000   0.44400   0.25000   0.06600
Na5   0.00000   0.00000   0.50000   0.10000   0.01000
Si1  -0.00030   0.23350   0.06896   0.63700   0.01600
Al1  -0.00030   0.23350   0.06896   0.36300   0.01600
Si2   0.23990   0.00000   0.50000   0.79700   0.01450
Al2   0.23990   0.00000   0.50000   0.20300   0.01450
O1   0.03340   0.35000   0.10800   1.00000   0.03500
O2   0.09250  -0.09250   0.08160   1.00000   0.03200
O3   0.12850  -0.12850  -0.08990   1.00000   0.03500
O4   0.26870   0.00000   0.00000   1.00000   0.03400
O5   0.22190  -0.22190   0.17830   1.00000   0.03400
Wat1   0.15280   0.07640   0.20930   1.00000   0.06000
Wat2   0.12070   0.24100   0.28660   1.00000   0.13300
Wat3   0.15600   0.07800   0.35230   1.00000   0.14200
Wat4   0.21000   0.42000   0.28710   0.24000   0.02800