data_global
_chemical_name_mineral 'Strontianite'
loop_
_publ_author_name
'de Villiers J P R'
_journal_name_full 'American Mineralogist'
_journal_volume 56 
_journal_year 1971
_journal_page_first 758
_journal_page_last 767
_publ_section_title
;
 Crystal structures of aragonite, strontianite, and witherite
;
_chemical_formula_sum 'Sr C O3'
_cell_length_a 5.090
_cell_length_b 8.358
_cell_length_c 5.997
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 255.126
_exptl_crystal_density_diffrn      3.844
_symmetry_space_group_name_H-M 'P m c n'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2-x,y,z'
  '1/2+x,-y,-z'
  '1/2+x,1/2+y,1/2-z'
  '1/2-x,1/2-y,1/2+z'
  'x,1/2-y,1/2+z'
  '-x,1/2+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_U_iso_or_equiv
Sr   0.25000   0.41600   0.75690   0.00643
C   0.25000   0.76010  -0.08640   0.00750
O1   0.25000   0.91190  -0.09460   0.01156
O2   0.46940   0.68210  -0.08390   0.01009

