data_global
_chemical_name_mineral 'Clinocervantite'
loop_
_publ_author_name
'Basso R'
'Lucchetti G'
'Zefiro L'
'Palenzona A'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 11 
_journal_year 1999
_journal_page_first 95
_journal_page_last 100
_publ_section_title
;
 Clinocervantite, B-Sb2O4, the natural monoclinic polymorph
 of cervantite from the Cetine mine, Siena, Italy
 Note: z-coordinate to O2 altered by communications with R Basso, April, 2003
;
_database_code_amcsd 0006763
_chemical_compound_source 'Cetine mine, Siena, Italy'
_chemical_formula_sum 'Sb O2'
_cell_length_a 12.061
_cell_length_b 4.836
_cell_length_c 5.383
_cell_angle_alpha 90
_cell_angle_beta 104.60
_cell_angle_gamma 90
_cell_volume 303.836
_exptl_crystal_density_diffrn      6.722
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Sb1   0.25000   0.25000   0.00000   0.00329
Sb2   0.00000   0.28510   0.25000   0.00671
O1   0.19180   0.05170   0.67460   0.00697
O2   0.09390   0.41220   0.96490   0.00646