data_global
_chemical_name_mineral 'Calcite'
loop_
_publ_author_name
'Ondrus P'
'Veselovsky F'
'Gabasova A'
'Hlousek J'
'Srein V'
'Vavrnn I'
'Skala R'
'Sejkora J'
'Drabek M'
_journal_name_full 'Journal of the Czech Geological Society'
_journal_volume 48 
_journal_year 2003
_journal_page_first 19
_journal_page_last 147
_publ_section_title
;
 Primary minerals of the Jachymov ore district
;
_database_code_amcsd 0017593
_chemical_compound_source 'Jachymov, Bohemia, Czech Republic'
_chemical_formula_sum 'Ca C O3'
_cell_length_a 4.9844
_cell_length_b 4.9844
_cell_length_c 17.0376
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 366.577
_exptl_crystal_density_diffrn      2.720
_symmetry_space_group_name_H-M 'R -3 c'
loop_
_space_group_symop_operation_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,1/2+z'
  '2/3+x,1/3+x-y,5/6+z'
  '1/3+x,2/3+x-y,1/6+z'
  'y,x,1/2-z'
  '2/3+y,1/3+x,5/6-z'
  '1/3+y,2/3+x,1/6-z'
  '-x+y,y,1/2+z'
  '2/3-x+y,1/3+y,5/6+z'
  '1/3-x+y,2/3+y,1/6+z'
  '-x,-x+y,1/2-z'
  '2/3-x,1/3-x+y,5/6-z'
  '1/3-x,2/3-x+y,1/6-z'
  '-y,-x,1/2+z'
  '2/3-y,1/3-x,5/6+z'
  '1/3-y,2/3-x,1/6+z'
  'x-y,-y,1/2-z'
  '2/3+x-y,1/3-y,5/6-z'
  '1/3+x-y,2/3-y,1/6-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_U_iso_or_equiv
Ca   0.00000   0.00000   0.00000   0.03445
C   0.00000   0.00000   0.25000   0.03420
O   0.25960   0.00000   0.25000   0.04521