#*********************************************************************************<br>
#<br>
# Crystallographic Information File for Tiptopite <br>
#<br>
# Reference : <br>
#   Peacor, D.R., Rouse, R.C. and Ahn, J.-H.<br>
#   Am. Mineral., 72, 816-820, (1987)<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_Tiptopite<br>
_chemical_name_systematic 'Tiptopite'<br><br>

_cell_length_a      11.655<br>
_cell_length_b      11.655<br>
_cell_length_c      4.692 <br>
_cell_angle_alpha   90 <br>
_cell_angle_beta    90 <br>
_cell_angle_gamma   120<br>
_cell_formula_units_Z   1<br>

<br>_space_group.name_H-M_ref   'P 63'<br>
_symmetry_space_group_name_H-M   'P 63'<br>
_symmetry_space_group_name_Hall  'P 6c'<br>
_space_group.IT_number  173 <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>
LI  Li  0.2207  0.1137  0.7486  2.32  0.483<br>
NA  Na  0.2207  0.1137  0.7486  2.32  0.283<br>
K  K  0.3333  0.6667  0.253  2.04  1<br>
CA  Ca  0.2207  0.1137  0.7486  2.32  0.1167<br>
BE  Be  0.338  0.418  0.746  0.63  1<br>
P1  P  0.0851  0.4167  0.75  0.5  1<br>
O1  O  0.1902  0.3843  0.6518  0.97  1<br>
O2  O  0.1378  0.5647  0.7027  0.75  1<br>
O3  O  0.0547  0.3801  0.0688  0.95  1<br>
O4  O  0.3302  0.3747  0.0862  0.65  1<br>
O5  O  0  0  0.253  2.67  1<br>
O6  O  0.064  0.13  0.378  1.58  0.25<br>
O7  O  0.066  0.13  0.097  1.58  0.25<br>
O8  O  0.168  0.322  0.236  1.58  0.17<br>

# End of data for Tiptopite<br>