The compound described by MgAg20(BiO4)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to one Ag(6), one O(13), one O(3), and one O(9) atom. There are twenty inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted bent 150 degrees geometry to one O(16) and one O(9) atom. In the second Ag site, Ag(2) is bonded in a linear geometry to one O(5) and one O(8) atom. In the third Ag site, Ag(3) is bonded in a distorted single-bond geometry to one O(1) and one O(3) atom. In the fourth Ag site, Ag(4) is bonded in a linear geometry to one O(2) and one O(4) atom. In the fifth Ag site, Ag(5) is bonded in a distorted T-shaped geometry to one O(14), one O(4), and one O(5) atom. In the sixth Ag site, Ag(6) is bonded in a 3-coordinate geometry to one Mg(1), one O(3), and one O(6) atom. In the seventh Ag site, Ag(7) is bonded in a 3-coordinate geometry to one O(12), one O(15), and one O(2) atom. In the eighth Ag site, Ag(8) is bonded in a distorted T-shaped geometry to one O(1), one O(11), and one O(16) atom. In the ninth Ag site, Ag(9) is bonded in a linear geometry to one O(11) and one O(2) atom. In the tenth Ag site, Ag(10) is bonded in a linear geometry to one O(1) and one O(12) atom. In the eleventh Ag site, Ag(11) is bonded in a linear geometry to one O(13) and one O(4) atom. In the twelfth Ag site, Ag(12) is bonded in a linear geometry to one O(14) and one O(3) atom. In the thirteenth Ag site, Ag(13) is bonded in a linear geometry to one O(11) and one O(13) atom. In the fourteenth Ag site, Ag(14) is bonded in a linear geometry to one O(12) and one O(14) atom. In the fifteenth Ag site, Ag(15) is bonded in a linear geometry to one O(6) and one O(7) atom. In the sixteenth Ag site, Ag(16) is bonded in a linear geometry to one O(5) and one O(8) atom. In the seventeenth Ag site, Ag(17) is bonded in a 2-coordinate geometry to one O(16) and one O(9) atom. In the eighteenth Ag site, Ag(18) is bonded in a linear geometry to one O(10) and one O(15) atom. In the nineteenth Ag site, Ag(19) is bonded in a linear geometry to one O(6) and one O(7) atom. In the twentieth Ag site, Ag(20) is bonded in a linear geometry to one O(10) and one O(15) atom. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(10), one O(14), one O(4), one O(6), and one O(8) atom to form edge-sharing BiO5 square pyramids. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(13), one O(3), one O(5), one O(7), and one O(9) atom. In the third Bi site, Bi(3) is bonded to one O(10), one O(12), one O(16), one O(2), and one O(8) atom to form edge-sharing BiO5 square pyramids. In the fourth Bi site, Bi(4) is bonded in a distorted square pyramidal geometry to one O(1), one O(11), one O(15), one O(7), and one O(9) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Ag(10), one Ag(3), one Ag(8), and one Bi(4) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra, and corners with two equivalent O(11)Ag3Bi tetrahedra. In the second O site, O(2) is bonded to one Ag(4), one Ag(7), one Ag(9), and one Bi(3) atom to form distorted OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(11)Ag3Bi tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, and corners with two equivalent O(12)Ag3Bi tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), one Ag(12), one Ag(3), one Ag(6), and one Bi(2) atom. In the fourth O site, O(4) is bonded to one Ag(11), one Ag(4), one Ag(5), and one Bi(1) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra,  a cornercorner with one O(5)Ag3Bi tetrahedra, corners with two equivalent O(14)Ag3Bi tetrahedra, and  a cornercorner with one O(6)Ag3Bi trigonal pyramid. In the fifth O site, O(5) is bonded to one Ag(16), one Ag(2), one Ag(5), and one Bi(2) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, and corners with two equivalent O(8)Ag2Bi2 tetrahedra. In the sixth O site, O(6) is bonded to one Ag(15), one Ag(19), one Ag(6), and one Bi(1) atom to form distorted OAg3Bi trigonal pyramids that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, and corners with two equivalent O(7)Ag2Bi2 tetrahedra. In the seventh O site, O(7) is bonded to one Ag(15), one Ag(19), one Bi(2), and one Bi(4) atom to form corner-sharing OAg2Bi2 tetrahedra. In the eighth O site, O(8) is bonded to one Ag(16), one Ag(2), one Bi(1), and one Bi(3) atom to form OAg2Bi2 tetrahedra that share  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, corners with two equivalent O(5)Ag3Bi tetrahedra,  a cornercorner with one O(6)Ag3Bi trigonal pyramid, and  an edgeedge with one O(10)Ag2Bi2 tetrahedra. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Mg(1), one Ag(1), one Ag(17), one Bi(2), and one Bi(4) atom. In the tenth O site, O(10) is bonded to one Ag(18), one Ag(20), one Bi(1), and one Bi(3) atom to form OAg2Bi2 tetrahedra that share  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, corners with two equivalent O(15)Ag3Bi tetrahedra,  a cornercorner with one O(6)Ag3Bi trigonal pyramid, and  an edgeedge with one O(8)Ag2Bi2 tetrahedra. In the eleventh O site, O(11) is bonded to one Ag(13), one Ag(8), one Ag(9), and one Bi(4) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra, and corners with two equivalent O(1)Ag3Bi tetrahedra. In the twelfth O site, O(12) is bonded to one Ag(10), one Ag(14), one Ag(7), and one Bi(3) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(1)Ag3Bi tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra, and corners with two equivalent O(2)Ag3Bi tetrahedra. In the thirteenth O site, O(13) is bonded in a distorted see-saw-like geometry to one Mg(1), one Ag(11), one Ag(13), and one Bi(2) atom. In the fourteenth O site, O(14) is bonded to one Ag(12), one Ag(14), one Ag(5), and one Bi(1) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(5)Ag3Bi tetrahedra, corners with two equivalent O(4)Ag3Bi tetrahedra, and  a cornercorner with one O(6)Ag3Bi trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Ag(18), one Ag(20), one Ag(7), and one Bi(4) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(1)Ag3Bi tetrahedra,  a cornercorner with one O(11)Ag3Bi tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra, and corners with two equivalent O(10)Ag2Bi2 tetrahedra. In the sixteenth O site, O(16) is bonded to one Ag(1), one Ag(17), one Ag(8), and one Bi(3) atom to form distorted OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(1)Ag3Bi tetrahedra,  a cornercorner with one O(11)Ag3Bi tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra, and  a cornercorner with one O(2)Ag3Bi tetrahedra. is represented by the CIF card [CIF]
data_MgAg20(BiO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.021
_cell_length_b   9.018
_cell_length_c   13.225
_cell_angle_alpha   91.282
_cell_angle_beta   89.299
_cell_angle_gamma   91.628
_symmetry_Int_Tables_number   1
_cell_volume   717.587
_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
  Mg  Mg0  1  0.267  0.728  0.957  1.0
  Ag  Ag1  1  0.225  0.725  0.163  1.0
  Ag  Ag2  1  0.737  0.778  0.630  1.0
  Ag  Ag3  1  0.930  0.480  0.032  1.0
  Ag  Ag4  1  0.499  0.998  0.497  1.0
  Ag  Ag5  1  0.008  0.151  0.654  1.0
  Ag  Ag6  1  0.610  0.566  0.901  1.0
  Ag  Ag7  1  0.970  0.858  0.343  1.0
  Ag  Ag8  1  0.533  0.371  0.154  1.0
  Ag  Ag9  1  0.526  0.985  0.245  1.0
  Ag  Ag10  1  0.971  0.482  0.260  1.0
  Ag  Ag11  1  0.451  0.021  0.745  1.0
  Ag  Ag12  1  0.058  0.513  0.739  1.0
  Ag  Ag13  1  0.477  0.036  0.997  1.0
  Ag  Ag14  1  0.006  0.499  0.495  1.0
  Ag  Ag15  1  0.234  0.273  0.868  1.0
  Ag  Ag16  1  0.232  0.774  0.630  1.0
  Ag  Ag17  1  0.673  0.731  0.077  1.0
  Ag  Ag18  1  0.765  0.224  0.370  1.0
  Ag  Ag19  1  0.736  0.261  0.861  1.0
  Ag  Ag20  1  0.260  0.224  0.366  1.0
  Bi  Bi21  1  0.525  0.381  0.613  1.0
  Bi  Bi22  1  0.932  0.898  0.868  1.0
  Bi  Bi23  1  0.481  0.619  0.385  1.0
  Bi  Bi24  1  0.012  0.111  0.119  1.0
  O  O25  1  0.111  0.345  0.139  1.0
  O  O26  1  0.412  0.860  0.372  1.0
  O  O27  1  0.026  0.655  0.867  1.0
  O  O28  1  0.591  0.138  0.620  1.0
  O  O29  1  0.986  0.915  0.700  1.0
  O  O30  1  0.495  0.389  0.788  1.0
  O  O31  1  0.977  0.145  0.941  1.0
  O  O32  1  0.486  0.639  0.569  1.0
  O  O33  1  0.039  0.839  0.051  1.0
  O  O34  1  0.514  0.357  0.436  1.0
  O  O35  1  0.647  0.133  0.126  1.0
  O  O36  1  0.847  0.634  0.382  1.0
  O  O37  1  0.304  0.914  0.876  1.0
  O  O38  1  0.158  0.368  0.613  1.0
  O  O39  1  0.007  0.089  0.294  1.0
  O  O40  1  0.491  0.596  0.218  1.0
[/CIF]
.
The compound described by MgAg20(BiO4)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to one Ag(6), one O(13), one O(3), and one O(9) atom. There are twenty inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted bent 150 degrees geometry to one O(16) and one O(9) atom. In the second Ag site, Ag(2) is bonded in a linear geometry to one O(5) and one O(8) atom. In the third Ag site, Ag(3) is bonded in a distorted single-bond geometry to one O(1) and one O(3) atom. In the fourth Ag site, Ag(4) is bonded in a linear geometry to one O(2) and one O(4) atom. In the fifth Ag site, Ag(5) is bonded in a distorted T-shaped geometry to one O(14), one O(4), and one O(5) atom. In the sixth Ag site, Ag(6) is bonded in a 3-coordinate geometry to one Mg(1), one O(3), and one O(6) atom. In the seventh Ag site, Ag(7) is bonded in a 3-coordinate geometry to one O(12), one O(15), and one O(2) atom. In the eighth Ag site, Ag(8) is bonded in a distorted T-shaped geometry to one O(1), one O(11), and one O(16) atom. In the ninth Ag site, Ag(9) is bonded in a linear geometry to one O(11) and one O(2) atom. In the tenth Ag site, Ag(10) is bonded in a linear geometry to one O(1) and one O(12) atom. In the eleventh Ag site, Ag(11) is bonded in a linear geometry to one O(13) and one O(4) atom. In the twelfth Ag site, Ag(12) is bonded in a linear geometry to one O(14) and one O(3) atom. In the thirteenth Ag site, Ag(13) is bonded in a linear geometry to one O(11) and one O(13) atom. In the fourteenth Ag site, Ag(14) is bonded in a linear geometry to one O(12) and one O(14) atom. In the fifteenth Ag site, Ag(15) is bonded in a linear geometry to one O(6) and one O(7) atom. In the sixteenth Ag site, Ag(16) is bonded in a linear geometry to one O(5) and one O(8) atom. In the seventeenth Ag site, Ag(17) is bonded in a 2-coordinate geometry to one O(16) and one O(9) atom. In the eighteenth Ag site, Ag(18) is bonded in a linear geometry to one O(10) and one O(15) atom. In the nineteenth Ag site, Ag(19) is bonded in a linear geometry to one O(6) and one O(7) atom. In the twentieth Ag site, Ag(20) is bonded in a linear geometry to one O(10) and one O(15) atom. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(10), one O(14), one O(4), one O(6), and one O(8) atom to form edge-sharing BiO5 square pyramids. In the second Bi site, Bi(2) is bonded in a 5-coordinate geometry to one O(13), one O(3), one O(5), one O(7), and one O(9) atom. In the third Bi site, Bi(3) is bonded to one O(10), one O(12), one O(16), one O(2), and one O(8) atom to form edge-sharing BiO5 square pyramids. In the fourth Bi site, Bi(4) is bonded in a distorted square pyramidal geometry to one O(1), one O(11), one O(15), one O(7), and one O(9) atom. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded to one Ag(10), one Ag(3), one Ag(8), and one Bi(4) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra, and corners with two equivalent O(11)Ag3Bi tetrahedra. In the second O site, O(2) is bonded to one Ag(4), one Ag(7), one Ag(9), and one Bi(3) atom to form distorted OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(11)Ag3Bi tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, and corners with two equivalent O(12)Ag3Bi tetrahedra. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Mg(1), one Ag(12), one Ag(3), one Ag(6), and one Bi(2) atom. In the fourth O site, O(4) is bonded to one Ag(11), one Ag(4), one Ag(5), and one Bi(1) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra,  a cornercorner with one O(5)Ag3Bi tetrahedra, corners with two equivalent O(14)Ag3Bi tetrahedra, and  a cornercorner with one O(6)Ag3Bi trigonal pyramid. In the fifth O site, O(5) is bonded to one Ag(16), one Ag(2), one Ag(5), and one Bi(2) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, and corners with two equivalent O(8)Ag2Bi2 tetrahedra. In the sixth O site, O(6) is bonded to one Ag(15), one Ag(19), one Ag(6), and one Bi(1) atom to form distorted OAg3Bi trigonal pyramids that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, and corners with two equivalent O(7)Ag2Bi2 tetrahedra. In the seventh O site, O(7) is bonded to one Ag(15), one Ag(19), one Bi(2), and one Bi(4) atom to form corner-sharing OAg2Bi2 tetrahedra. In the eighth O site, O(8) is bonded to one Ag(16), one Ag(2), one Bi(1), and one Bi(3) atom to form OAg2Bi2 tetrahedra that share  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, corners with two equivalent O(5)Ag3Bi tetrahedra,  a cornercorner with one O(6)Ag3Bi trigonal pyramid, and  an edgeedge with one O(10)Ag2Bi2 tetrahedra. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Mg(1), one Ag(1), one Ag(17), one Bi(2), and one Bi(4) atom. In the tenth O site, O(10) is bonded to one Ag(18), one Ag(20), one Bi(1), and one Bi(3) atom to form OAg2Bi2 tetrahedra that share  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra,  a cornercorner with one O(4)Ag3Bi tetrahedra, corners with two equivalent O(15)Ag3Bi tetrahedra,  a cornercorner with one O(6)Ag3Bi trigonal pyramid, and  an edgeedge with one O(8)Ag2Bi2 tetrahedra. In the eleventh O site, O(11) is bonded to one Ag(13), one Ag(8), one Ag(9), and one Bi(4) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra, and corners with two equivalent O(1)Ag3Bi tetrahedra. In the twelfth O site, O(12) is bonded to one Ag(10), one Ag(14), one Ag(7), and one Bi(3) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(1)Ag3Bi tetrahedra,  a cornercorner with one O(14)Ag3Bi tetrahedra,  a cornercorner with one O(15)Ag3Bi tetrahedra,  a cornercorner with one O(16)Ag3Bi tetrahedra, and corners with two equivalent O(2)Ag3Bi tetrahedra. In the thirteenth O site, O(13) is bonded in a distorted see-saw-like geometry to one Mg(1), one Ag(11), one Ag(13), and one Bi(2) atom. In the fourteenth O site, O(14) is bonded to one Ag(12), one Ag(14), one Ag(5), and one Bi(1) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(5)Ag3Bi tetrahedra, corners with two equivalent O(4)Ag3Bi tetrahedra, and  a cornercorner with one O(6)Ag3Bi trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Ag(18), one Ag(20), one Ag(7), and one Bi(4) atom to form OAg3Bi tetrahedra that share  a cornercorner with one O(7)Ag2Bi2 tetrahedra,  a cornercorner with one O(1)Ag3Bi tetrahedra,  a cornercorner with one O(11)Ag3Bi tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra,  a cornercorner with one O(2)Ag3Bi tetrahedra, and corners with two equivalent O(10)Ag2Bi2 tetrahedra. In the sixteenth O site, O(16) is bonded to one Ag(1), one Ag(17), one Ag(8), and one Bi(3) atom to form distorted OAg3Bi tetrahedra that share  a cornercorner with one O(10)Ag2Bi2 tetrahedra,  a cornercorner with one O(8)Ag2Bi2 tetrahedra,  a cornercorner with one O(1)Ag3Bi tetrahedra,  a cornercorner with one O(11)Ag3Bi tetrahedra,  a cornercorner with one O(12)Ag3Bi tetrahedra, and  a cornercorner with one O(2)Ag3Bi tetrahedra. is represented by the CIF card [CIF]
data_MgAg20(BiO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.021
_cell_length_b   9.018
_cell_length_c   13.225
_cell_angle_alpha   91.282
_cell_angle_beta   89.299
_cell_angle_gamma   91.628
_symmetry_Int_Tables_number   1
_cell_volume   717.587
_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
  Mg  Mg0  1  0.267  0.728  0.957  1.0
  Ag  Ag1  1  0.225  0.725  0.163  1.0
  Ag  Ag2  1  0.737  0.778  0.630  1.0
  Ag  Ag3  1  0.930  0.480  0.032  1.0
  Ag  Ag4  1  0.499  0.998  0.497  1.0
  Ag  Ag5  1  0.008  0.151  0.654  1.0
  Ag  Ag6  1  0.610  0.566  0.901  1.0
  Ag  Ag7  1  0.970  0.858  0.343  1.0
  Ag  Ag8  1  0.533  0.371  0.154  1.0
  Ag  Ag9  1  0.526  0.985  0.245  1.0
  Ag  Ag10  1  0.971  0.482  0.260  1.0
  Ag  Ag11  1  0.451  0.021  0.745  1.0
  Ag  Ag12  1  0.058  0.513  0.739  1.0
  Ag  Ag13  1  0.477  0.036  0.997  1.0
  Ag  Ag14  1  0.006  0.499  0.495  1.0
  Ag  Ag15  1  0.234  0.273  0.868  1.0
  Ag  Ag16  1  0.232  0.774  0.630  1.0
  Ag  Ag17  1  0.673  0.731  0.077  1.0
  Ag  Ag18  1  0.765  0.224  0.370  1.0
  Ag  Ag19  1  0.736  0.261  0.861  1.0
  Ag  Ag20  1  0.260  0.224  0.366  1.0
  Bi  Bi21  1  0.525  0.381  0.613  1.0
  Bi  Bi22  1  0.932  0.898  0.868  1.0
  Bi  Bi23  1  0.481  0.619  0.385  1.0
  Bi  Bi24  1  0.012  0.111  0.119  1.0
  O  O25  1  0.111  0.345  0.139  1.0
  O  O26  1  0.412  0.860  0.372  1.0
  O  O27  1  0.026  0.655  0.867  1.0
  O  O28  1  0.591  0.138  0.620  1.0
  O  O29  1  0.986  0.915  0.700  1.0
  O  O30  1  0.495  0.389  0.788  1.0
  O  O31  1  0.977  0.145  0.941  1.0
  O  O32  1  0.486  0.639  0.569  1.0
  O  O33  1  0.039  0.839  0.051  1.0
  O  O34  1  0.514  0.357  0.436  1.0
  O  O35  1  0.647  0.133  0.126  1.0
  O  O36  1  0.847  0.634  0.382  1.0
  O  O37  1  0.304  0.914  0.876  1.0
  O  O38  1  0.158  0.368  0.613  1.0
  O  O39  1  0.007  0.089  0.294  1.0
  O  O40  1  0.491  0.596  0.218  1.0
[/CIF]
.