Hello,

   I want to read the following file .cif. Apparently Avogadro has  
problems to read "_symmetry_space_group_name_H-M 'C -1'". I do not  
know how to fix the problem. Could you help me?

Thanks, best regards,

Fabienne.

data_global
_chemical_name_mineral 'Pyrophyllite'
loop_
_publ_author_name
'Wardle R'
'Brindley G W'
_journal_name_full 'American Mineralogist'
_journal_volume 57
_journal_year 1972
_journal_page_first 732
_journal_page_last 750
_publ_section_title
;
  The crystal structures of pyrophyllite, 1Tc, and of its dehydroxylate
;
_database_code_amcsd 0000285
_chemical_formula_sum 'Al Si2 O6 H'
_cell_length_a 5.1614
_cell_length_b 8.9576
_cell_length_c 9.3511
_cell_angle_alpha 91.03
_cell_angle_beta 100.37
_cell_angle_gamma 89.75
_cell_volume 425.206
_exptl_crystal_density_diffrn      2.814
_symmetry_space_group_name_H-M 'C -1'
loop_
_space_group_symop_operation_xyz
   'x,y,z'
   '1/2+x,1/2+y,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
Al   0.50000   0.16700   0.00000
Si1   0.74800   0.00000   0.28900
Si2   0.75900   0.33100   0.28900
O1   0.67100   0.00400   0.11300
O2   0.72100   0.31900   0.11300
O-H   0.22100   0.18600   0.11300
Ob1   0.05500   0.38700   0.35300
Ob2   0.72400   0.16700   0.35300
Ob3   0.55000   0.44800   0.33600



-----
Pièces jointes
https://webmail.irsamc.ups-tlse.fr/imp/attachment.php?u=bessac&t=1330969048&f=AMS_DATA.cif

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