# generated using pymatgen
data_Er2Si2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.59660816
_cell_length_b   5.59660816
_cell_length_c   4.72345865
_cell_angle_alpha   82.75836808
_cell_angle_beta   82.75836808
_cell_angle_gamma   105.13897059
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Er2Si2O7
_chemical_formula_sum   'Er2 Si2 O7'
_cell_volume   139.70862632
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Er  Er0  1  0.30706599  0.69293401  -0.00000000  1.0
  Er  Er1  1  0.69293401  0.30706599  -0.00000000  1.0
  Si  Si2  1  0.21943451  0.21943451  0.58807976  1.0
  Si  Si3  1  0.78056549  0.78056549  0.41192024  1.0
  O  O4  1  0.91438721  0.61307378  0.22044519  1.0
  O  O5  1  0.38692622  0.08561279  0.77955481  1.0
  O  O6  1  0.08561279  0.38692622  0.77955481  1.0
  O  O7  1  0.61307378  0.91438721  0.22044519  1.0
  O  O8  1  0.00000000  0.00000000  0.50000000  1.0
  O  O9  1  0.61688257  0.61688257  0.71539040  1.0
  O  O10  1  0.38311743  0.38311743  0.28460960  1.0