#------------------------------------------------------------------------------
#$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $
#$Revision: 858 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9009297.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_9009297
_space_group_IT_number           166
_symmetry_space_group_name_Hall  '-R 3 2"'
_symmetry_space_group_name_H-M   'R -3 m :H'
_[local]_cod_cif_authors_sg_H-M  'R -3 m'
loop_
_publ_author_name
'Okada K'
'Hirabayashi J'
'Ossaka J'
_publ_section_title
;
 Crystal structure of natroalunite and crystal chemistry of the alunite group
 Locality: Sonomi-dake, Makurazaki-city, Kagoshima Prefecture, Japan
;
_journal_name_full               'Neues Jahrbuch fur Mineralogie, Monatshefte'
_journal_page_first              534
_journal_page_last               540
_journal_volume                  1982
_journal_year                    1982
_chemical_formula_sum            'Al3 H6 K0.42 Na0.58 O14 S2'
_[local]_cod_chemical_formula_sum_orig '(Na.58 K.42) Al3 S2 O14 H6'
_chemical_name_mineral           Natroalunite
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   6.990
_cell_length_b                   6.990
_cell_length_c                   16.905
_cell_volume                     715.320
loop_
_symmetry_equiv_pos_as_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
Na 0.00000 0.00000 0.00000 0.58000 0.02406
K 0.00000 0.00000 0.00000 0.42000 0.02406
Al 0.00000 0.50000 0.50000 1.00000 0.00659
S 0.00000 0.00000 0.30590 1.00000 0.00646
O1 0.00000 0.00000 0.39211 1.00000 0.00963
O2 0.21805 -0.21805 -0.05729 1.00000 0.00950
O-h 0.12534 -0.12534 0.13902 1.00000 0.00937
H 0.17800 -0.17800 0.11600 1.00000 0.03926
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na 0.02700 0.02700 0.01820 0.01350 0.00000 0.00000
K 0.02700 0.02700 0.01820 0.01350 0.00000 0.00000
Al 0.00390 0.00470 0.01080 0.00200 0.00000 0.00000
S 0.00550 0.00550 0.00810 0.00280 0.00000 0.00000
O1 0.01060 0.01060 0.00770 0.00530 0.00000 0.00000
O2 0.01010 0.01010 0.01090 0.00720 -0.00040 0.00040
Oh 0.00540 0.00540 0.01640 0.00210 0.00160 -0.00160