data_global
_chemical_name_mineral 'Grenmarite'
loop_
_publ_author_name
'Bellezza M'
'Franzini M'
'Larsen A O '
'Merlino S'
'Perchiazzi N'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 16 
_journal_year 2004
_journal_page_first 971
_journal_page_last 978
_publ_section_title
;
 Grenmarite, a new member of the gotzenite-seidozerite-rosenbuschite
 group from the Langesundsfjord district, Norway: definition and crystal structure
;
_database_code_amcsd 0007085
_chemical_compound_source 'Langesundsfjord district, Norway'
_chemical_formula_sum 'Zr2.3 Mn1.3 Ti.46 Na3.56 Ca.38 Si4 O16 F2'
_cell_length_a 5.608
_cell_length_b 7.139
_cell_length_c 18.575
_cell_angle_alpha 90
_cell_angle_beta 102.60
_cell_angle_gamma 90
_cell_volume 725.750
_exptl_crystal_density_diffrn      3.691
_symmetry_space_group_name_H-M 'P 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,-y,1/2+z'
  '-x,y,1/2-z'
  '-x,-y,-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
Zr1   0.20040   0.11970   0.07330   0.88000   0.01200
Mn1   0.20040   0.11970   0.07330   0.12000   0.01200
Zr2   0.00000   0.11430   0.25000   0.54000   0.01200
Ti2   0.00000   0.11430   0.25000   0.46000   0.01200
Mn3   0.50000   0.35330   0.25000   0.76000   0.01600
Na3   0.50000   0.35330   0.25000   0.24000   0.01600
Na4   0.20510   0.61510   0.06950   0.85000   0.02300
Mn4   0.20510   0.61510   0.06950   0.15000   0.02300
Na5   0.00000   0.61520   0.25000   0.86000   0.02300
Ca5   0.00000   0.61520   0.25000   0.14000   0.02300
Na6   0.50000   0.85890   0.25000   0.76000   0.02800
Ca6   0.50000   0.85890   0.25000   0.24000   0.02800
Si1   0.72370   0.38840   0.10340   1.00000   0.01200
Si2   0.72030   0.84130   0.10410   1.00000   0.01200
O1   0.73550   0.61440   0.10710   1.00000   0.02900
O2   0.44730   0.32590   0.06610   1.00000   0.02200
O3   0.43980   0.90150   0.07550   1.00000   0.02000
O4   0.92560   0.32390   0.05870   1.00000   0.02000
O5   0.90350   0.90740   0.05150   1.00000   0.01900
O6   0.79110   0.31850   0.18910   1.00000   0.01900
O7   0.81610   0.91000   0.18810   1.00000   0.01900
O8   0.24390   0.12660   0.18510   1.00000   0.01900
F   0.30250   0.58790   0.19190   1.00000   0.03400