#*********************************************************************************<br>
#<br>
# Crystallographic Information File for Natrolite <br>
#<br>
# Reference : <br>
#   Meier, W.M.<br>
#   Z. Kristallogr., 113, 430-444, (1960)<br>
#<br>
#<br>
# CIF downloaded from the IZA-SC Database of Zeolite Structures<br>
# Ch. Baerlocher, L.B. McCusker and D.H. Brouwer<br>
# Database of Zeolite Structures: https://www.iza-structure.org/databases/ <br>
#<br>
#**********************************************************************************<br>


data_Natrolite<br>
_chemical_name_systematic 'Natrolite'<br><br>

_cell_length_a      18.3<br>
_cell_length_b      18.63<br>
_cell_length_c      6.6 <br>
_cell_angle_alpha   90 <br>
_cell_angle_beta    90 <br>
_cell_angle_gamma   90<br>
_cell_formula_units_Z   1<br>

<br>_space_group.name_H-M_ref   'F d d 2'<br>
_symmetry_space_group_name_H-M   'F d d 2'<br>
_symmetry_space_group_name_Hall  'F 2 -2d'<br>
_space_group.IT_number  43 <br>
<br>
 
 loop_<br>
_atom_site_label<br>
_atom_site_type_symbol<br>
_atom_site_fract_x<br>
_atom_site_fract_y<br>
_atom_site_fract_z<br>
_atom_site_B_iso_or_equiv<br>
_atom_site_occupancy<br>
NA1  Na  0.2208  0.0305  0.612  2  1<br>
SI1  Si  0  0  0  1.07  1<br>
SI2  Si  0.1532  0.2112  0.6181  1  1<br>
AL1  Al  0.0376  0.0936  0.6119  1.12  1<br>
O1  O  0.0227  0.0683  0.8594  1.81  1<br>
O2  O  0.0704  0.1824  0.6011  1.1  1<br>
O3  O  0.0986  0.0346  0.4997  1.55  1<br>
O4  O  0.2063  0.1526  0.7166  1.24  1<br>
O5  O  0.1799  0.2272  0.386  1.83  1<br>
H2O1  O2-(H2O)  0.0564  0.1893  0.1085  2.5  1<br>

# End of data for Natrolite<br>