#*********************************************************************************
#
# Crystallographic Information File for Nepheline Hydrate
#
# Reference :
# Rheinhardt, A., Hellner, E. and Ahsbahs, H.
# Fortsch. Mineral., 60, 175-176, (1982)
#
#
# CIF downloaded from the IZA-SC Database of Zeolite Structures
# Ch. Baerlocher, L.B. McCusker and D.H. Brouwer
# Database of Zeolite Structures: https://www.iza-structure.org/databases/
#
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data_Nepheline_Hydrate
_chemical_name_systematic 'Nepheline Hydrate'
_cell_length_a 7.503
_cell_length_b 8.233
_cell_length_c 5.23
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_formula_units_Z 1
_space_group.name_H-M_ref 'P m c 21'
_symmetry_space_group_name_H-M 'P m c 21'
_symmetry_space_group_name_Hall 'P 2c -2'
_space_group.IT_number 26
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_B_iso_or_equiv
_atom_site_occupancy
NA1 Na 0.5 0.1774 0.466 1.9 1
NA2 Na 0 0.419 0.106 4.9 0.5
SI Si 0.5 0.3942 -0.015 0.9 0.5
SI Si 0.2173 0.106 0 0.9 0.5
AL Al 0.5 0.3942 -0.015 0.9 0.5
AL Al 0.2173 0.106 0 0.9 0.5
O1 O 0 0.142 0.014 1.8 1
O2 O 0.5 0.5628 0.17 1.8 1
O3 O 0.2849 0.0326 0.718 2 1
O4 O 0.3204 0.1833 0.061 1.8 1
H2O1 O2-(H2O) 0 0.33 0.514 2.9 0.25
H2O2 O2-(H2O) 0 0.47 0.538 3.9 0.25
# End of data for Nepheline_Hydrate