The structure described by MgAg14(PbO3)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to one O(13), one O(6), and one O(8) atom. There are fourteen inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a linear geometry to one O(1) and one O(3) atom. In the second Ag site, Ag(2) is bonded in a linear geometry to one O(4) and one O(7) atom. In the third Ag site, Ag(3) is bonded in a bent 150 degrees geometry to one O(5) and one O(6) atom. In the fourth Ag site, Ag(4) is bonded in a linear geometry to one O(10) and one O(14) atom. In the fifth Ag site, Ag(5) is bonded in a distorted trigonal non-coplanar geometry to one O(18), one O(4), and one O(5) atom. In the sixth Ag site, Ag(6) is bonded in a 3-coordinate geometry to one O(17), one O(6), and one O(7) atom. In the seventh Ag site, Ag(7) is bonded in a trigonal planar geometry to one O(11), one O(13), and one O(2) atom. In the eighth Ag site, Ag(8) is bonded in a trigonal planar geometry to one O(16), one O(8), and one O(9) atom. In the ninth Ag site, Ag(9) is bonded in a trigonal planar geometry to one O(10), one O(12), and one O(3) atom. In the tenth Ag site, Ag(10) is bonded in a trigonal non-coplanar geometry to one O(1), one O(14), and one O(15) atom. In the eleventh Ag site, Ag(11) is bonded in a linear geometry to one O(11) and one O(9) atom. In the twelfth Ag site, Ag(12) is bonded in a linear geometry to one O(12) and one O(15) atom. In the thirteenth Ag site, Ag(13) is bonded in a linear geometry to one O(17) and one O(18) atom. In the fourteenth Ag site, Ag(14) is bonded in a linear geometry to one O(16) and one O(2) atom. There are six inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(6), and one O(8) atom to form PbO6 octahedra that share  a cornercorner with one Pb(6)O5 square pyramid,  an edgeedge with one Pb(2)O6 octahedra, and  an edgeedge with one Pb(3)O6 octahedra. In the second Pb site, Pb(2) is bonded to one O(1), one O(12), one O(2), one O(5), one O(7), and one O(9) atom to form edge-sharing PbO6 octahedra. In the third Pb site, Pb(3) is bonded to one O(11), one O(14), one O(17), one O(3), one O(4), and one O(8) atom to form edge-sharing PbO6 octahedra. In the fourth Pb site, Pb(4) is bonded to one O(13), one O(15), one O(17), one O(3), one O(5), and one O(9) atom to form PbO6 octahedra that share  an edgeedge with one Pb(2)O6 octahedra,  an edgeedge with one Pb(3)O6 octahedra, and  an edgeedge with one Pb(6)O5 square pyramid. In the fifth Pb site, Pb(5) is bonded to one O(11), one O(12), one O(14), one O(16), one O(18), and one O(7) atom to form PbO6 octahedra that share  an edgeedge with one Pb(2)O6 octahedra,  an edgeedge with one Pb(3)O6 octahedra, and  an edgeedge with one Pb(6)O5 square pyramid. In the sixth Pb site, Pb(6) is bonded to one O(10), one O(13), one O(15), one O(16), and one O(18) atom to form a mixture of corner and edge-sharing PbO5 square pyramids. The corner-sharing octahedral tilt angles are 74°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded to one Ag(1), one Ag(10), one Pb(1), and one Pb(2) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(2)Ag2Pb2 tetrahedra. In the second O site, O(2) is bonded to one Ag(14), one Ag(7), one Pb(1), and one Pb(2) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(1)Ag2Pb2 tetrahedra. In the third O site, O(3) is bonded to one Ag(1), one Ag(9), one Pb(3), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(17)Ag2Pb2 tetrahedra. In the fourth O site, O(4) is bonded to one Ag(2), one Ag(5), one Pb(1), and one Pb(3) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(8)MgAgPb2 tetrahedra. In the fifth O site, O(5) is bonded to one Ag(3), one Ag(5), one Pb(2), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(9)Ag2Pb2 tetrahedra. In the sixth O site, O(6) is bonded to one Mg(1), one Ag(3), one Ag(6), and one Pb(1) atom to form OMgAg2Pb trigonal pyramids that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra, and  an edgeedge with one O(8)MgAgPb2 tetrahedra. In the seventh O site, O(7) is bonded to one Ag(2), one Ag(6), one Pb(2), and one Pb(5) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(12)Ag2Pb2 tetrahedra. In the eighth O site, O(8) is bonded to one Mg(1), one Ag(8), one Pb(1), and one Pb(3) atom to form distorted OMgAgPb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  an edgeedge with one O(4)Ag2Pb2 tetrahedra, and  an edgeedge with one O(6)MgAg2Pb trigonal pyramid. In the ninth O site, O(9) is bonded to one Ag(11), one Ag(8), one Pb(2), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(5)Ag2Pb2 tetrahedra. In the tenth O site, O(10) is bonded to one Ag(4), one Ag(9), one Pb(1), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  a cornercorner with one O(6)MgAg2Pb trigonal pyramid. In the eleventh O site, O(11) is bonded to one Ag(11), one Ag(7), one Pb(3), and one Pb(5) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(14)Ag2Pb2 tetrahedra. In the twelfth O site, O(12) is bonded to one Ag(12), one Ag(9), one Pb(2), and one Pb(5) atom to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the thirteenth O site, O(13) is bonded to one Mg(1), one Ag(7), one Pb(4), and one Pb(6) atom to form distorted OMgAgPb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(15)Ag2Pb2 tetrahedra. In the fourteenth O site, O(14) is bonded to one Ag(10), one Ag(4), one Pb(3), and one Pb(5) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(11)Ag2Pb2 tetrahedra. In the fifteenth O site, O(15) is bonded to one Ag(10), one Ag(12), one Pb(4), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra, and  an edgeedge with one O(13)MgAgPb2 tetrahedra. In the sixteenth O site, O(16) is bonded to one Ag(14), one Ag(8), one Pb(5), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(18)Ag2Pb2 tetrahedra. In the seventeenth O site, O(17) is bonded to one Ag(13), one Ag(6), one Pb(3), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(3)Ag2Pb2 tetrahedra. In the eighteenth O site, O(18) is bonded to one Ag(13), one Ag(5), one Pb(5), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra, and  an edgeedge with one O(16)Ag2Pb2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAg14(PbO3)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.918
_cell_length_b   8.967
_cell_length_c   8.767
_cell_angle_alpha   74.333
_cell_angle_beta   106.551
_cell_angle_gamma   106.947
_symmetry_Int_Tables_number   1
_cell_volume   629.326
_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  0.475  0.961  0.567  1.0
  Ag  Ag1  1  0.843  0.161  0.680  1.0
  Ag  Ag2  1  0.170  0.323  0.842  1.0
  Ag  Ag3  1  0.701  0.828  0.873  1.0
  Ag  Ag4  1  0.329  0.161  0.167  1.0
  Ag  Ag5  1  0.104  0.921  0.941  1.0
  Ag  Ag6  1  0.256  0.718  0.787  1.0
  Ag  Ag7  1  0.419  0.586  0.591  1.0
  Ag  Ag8  1  0.594  0.407  0.417  1.0
  Ag  Ag9  1  0.751  0.233  0.263  1.0
  Ag  Ag10  1  0.909  0.061  0.090  1.0
  Ag  Ag11  1  0.003  0.488  0.516  1.0
  Ag  Ag12  1  0.832  0.643  0.194  1.0
  Ag  Ag13  1  0.158  0.820  0.345  1.0
  Ag  Ag14  1  0.498  0.491  0.007  1.0
  Pb  Pb15  1  0.503  0.163  0.835  1.0
  Pb  Pb16  1  0.834  0.490  0.847  1.0
  Pb  Pb17  1  0.173  0.160  0.504  1.0
  Pb  Pb18  1  0.842  0.828  0.524  1.0
  Pb  Pb19  1  0.167  0.487  0.181  1.0
  Pb  Pb20  1  0.504  0.827  0.196  1.0
  O  O21  1  0.774  0.220  0.864  1.0
  O  O22  1  0.563  0.432  0.818  1.0
  O  O23  1  0.903  0.099  0.492  1.0
  O  O24  1  0.234  0.141  0.776  1.0
  O  O25  1  0.878  0.762  0.798  1.0
  O  O26  1  0.482  0.910  0.807  1.0
  O  O27  1  0.103  0.502  0.906  1.0
  O  O28  1  0.441  0.176  0.547  1.0
  O  O29  1  0.816  0.555  0.573  1.0
  O  O30  1  0.518  0.110  0.104  1.0
  O  O31  1  0.191  0.426  0.456  1.0
  O  O32  1  0.896  0.464  0.122  1.0
  O  O33  1  0.564  0.834  0.477  1.0
  O  O34  1  0.140  0.217  0.232  1.0
  O  O35  1  0.788  0.838  0.257  1.0
  O  O36  1  0.431  0.541  0.199  1.0
  O  O37  1  0.122  0.893  0.538  1.0
  O  O38  1  0.215  0.750  0.164  1.0
[/CIF]
.
The structure described by MgAg14(PbO3)6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to one O(13), one O(6), and one O(8) atom. There are fourteen inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a linear geometry to one O(1) and one O(3) atom. In the second Ag site, Ag(2) is bonded in a linear geometry to one O(4) and one O(7) atom. In the third Ag site, Ag(3) is bonded in a bent 150 degrees geometry to one O(5) and one O(6) atom. In the fourth Ag site, Ag(4) is bonded in a linear geometry to one O(10) and one O(14) atom. In the fifth Ag site, Ag(5) is bonded in a distorted trigonal non-coplanar geometry to one O(18), one O(4), and one O(5) atom. In the sixth Ag site, Ag(6) is bonded in a 3-coordinate geometry to one O(17), one O(6), and one O(7) atom. In the seventh Ag site, Ag(7) is bonded in a trigonal planar geometry to one O(11), one O(13), and one O(2) atom. In the eighth Ag site, Ag(8) is bonded in a trigonal planar geometry to one O(16), one O(8), and one O(9) atom. In the ninth Ag site, Ag(9) is bonded in a trigonal planar geometry to one O(10), one O(12), and one O(3) atom. In the tenth Ag site, Ag(10) is bonded in a trigonal non-coplanar geometry to one O(1), one O(14), and one O(15) atom. In the eleventh Ag site, Ag(11) is bonded in a linear geometry to one O(11) and one O(9) atom. In the twelfth Ag site, Ag(12) is bonded in a linear geometry to one O(12) and one O(15) atom. In the thirteenth Ag site, Ag(13) is bonded in a linear geometry to one O(17) and one O(18) atom. In the fourteenth Ag site, Ag(14) is bonded in a linear geometry to one O(16) and one O(2) atom. There are six inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(6), and one O(8) atom to form PbO6 octahedra that share  a cornercorner with one Pb(6)O5 square pyramid,  an edgeedge with one Pb(2)O6 octahedra, and  an edgeedge with one Pb(3)O6 octahedra. In the second Pb site, Pb(2) is bonded to one O(1), one O(12), one O(2), one O(5), one O(7), and one O(9) atom to form edge-sharing PbO6 octahedra. In the third Pb site, Pb(3) is bonded to one O(11), one O(14), one O(17), one O(3), one O(4), and one O(8) atom to form edge-sharing PbO6 octahedra. In the fourth Pb site, Pb(4) is bonded to one O(13), one O(15), one O(17), one O(3), one O(5), and one O(9) atom to form PbO6 octahedra that share  an edgeedge with one Pb(2)O6 octahedra,  an edgeedge with one Pb(3)O6 octahedra, and  an edgeedge with one Pb(6)O5 square pyramid. In the fifth Pb site, Pb(5) is bonded to one O(11), one O(12), one O(14), one O(16), one O(18), and one O(7) atom to form PbO6 octahedra that share  an edgeedge with one Pb(2)O6 octahedra,  an edgeedge with one Pb(3)O6 octahedra, and  an edgeedge with one Pb(6)O5 square pyramid. In the sixth Pb site, Pb(6) is bonded to one O(10), one O(13), one O(15), one O(16), and one O(18) atom to form a mixture of corner and edge-sharing PbO5 square pyramids. The corner-sharing octahedral tilt angles are 74°. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded to one Ag(1), one Ag(10), one Pb(1), and one Pb(2) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(2)Ag2Pb2 tetrahedra. In the second O site, O(2) is bonded to one Ag(14), one Ag(7), one Pb(1), and one Pb(2) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(1)Ag2Pb2 tetrahedra. In the third O site, O(3) is bonded to one Ag(1), one Ag(9), one Pb(3), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(17)Ag2Pb2 tetrahedra. In the fourth O site, O(4) is bonded to one Ag(2), one Ag(5), one Pb(1), and one Pb(3) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(8)MgAgPb2 tetrahedra. In the fifth O site, O(5) is bonded to one Ag(3), one Ag(5), one Pb(2), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(9)Ag2Pb2 tetrahedra. In the sixth O site, O(6) is bonded to one Mg(1), one Ag(3), one Ag(6), and one Pb(1) atom to form OMgAg2Pb trigonal pyramids that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra, and  an edgeedge with one O(8)MgAgPb2 tetrahedra. In the seventh O site, O(7) is bonded to one Ag(2), one Ag(6), one Pb(2), and one Pb(5) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(12)Ag2Pb2 tetrahedra. In the eighth O site, O(8) is bonded to one Mg(1), one Ag(8), one Pb(1), and one Pb(3) atom to form distorted OMgAgPb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  an edgeedge with one O(4)Ag2Pb2 tetrahedra, and  an edgeedge with one O(6)MgAg2Pb trigonal pyramid. In the ninth O site, O(9) is bonded to one Ag(11), one Ag(8), one Pb(2), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(5)Ag2Pb2 tetrahedra. In the tenth O site, O(10) is bonded to one Ag(4), one Ag(9), one Pb(1), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  a cornercorner with one O(6)MgAg2Pb trigonal pyramid. In the eleventh O site, O(11) is bonded to one Ag(11), one Ag(7), one Pb(3), and one Pb(5) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(14)Ag2Pb2 tetrahedra. In the twelfth O site, O(12) is bonded to one Ag(12), one Ag(9), one Pb(2), and one Pb(5) atom to form a mixture of corner and edge-sharing OAg2Pb2 tetrahedra. In the thirteenth O site, O(13) is bonded to one Mg(1), one Ag(7), one Pb(4), and one Pb(6) atom to form distorted OMgAgPb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(15)Ag2Pb2 tetrahedra. In the fourteenth O site, O(14) is bonded to one Ag(10), one Ag(4), one Pb(3), and one Pb(5) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(11)Ag2Pb2 tetrahedra. In the fifteenth O site, O(15) is bonded to one Ag(10), one Ag(12), one Pb(4), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(1)Ag2Pb2 tetrahedra,  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(16)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(3)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra, and  an edgeedge with one O(13)MgAgPb2 tetrahedra. In the sixteenth O site, O(16) is bonded to one Ag(14), one Ag(8), one Pb(5), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(2)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra, and  an edgeedge with one O(18)Ag2Pb2 tetrahedra. In the seventeenth O site, O(17) is bonded to one Ag(13), one Ag(6), one Pb(3), and one Pb(4) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(18)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(9)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra,  a cornercorner with one O(8)MgAgPb2 tetrahedra,  a cornercorner with one O(6)MgAg2Pb trigonal pyramid, and  an edgeedge with one O(3)Ag2Pb2 tetrahedra. In the eighteenth O site, O(18) is bonded to one Ag(13), one Ag(5), one Pb(5), and one Pb(6) atom to form OAg2Pb2 tetrahedra that share  a cornercorner with one O(10)Ag2Pb2 tetrahedra,  a cornercorner with one O(11)Ag2Pb2 tetrahedra,  a cornercorner with one O(12)Ag2Pb2 tetrahedra,  a cornercorner with one O(14)Ag2Pb2 tetrahedra,  a cornercorner with one O(15)Ag2Pb2 tetrahedra,  a cornercorner with one O(17)Ag2Pb2 tetrahedra,  a cornercorner with one O(4)Ag2Pb2 tetrahedra,  a cornercorner with one O(5)Ag2Pb2 tetrahedra,  a cornercorner with one O(7)Ag2Pb2 tetrahedra,  a cornercorner with one O(13)MgAgPb2 tetrahedra, and  an edgeedge with one O(16)Ag2Pb2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAg14(PbO3)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.918
_cell_length_b   8.967
_cell_length_c   8.767
_cell_angle_alpha   74.333
_cell_angle_beta   106.551
_cell_angle_gamma   106.947
_symmetry_Int_Tables_number   1
_cell_volume   629.326
_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  0.475  0.961  0.567  1.0
  Ag  Ag1  1  0.843  0.161  0.680  1.0
  Ag  Ag2  1  0.170  0.323  0.842  1.0
  Ag  Ag3  1  0.701  0.828  0.873  1.0
  Ag  Ag4  1  0.329  0.161  0.167  1.0
  Ag  Ag5  1  0.104  0.921  0.941  1.0
  Ag  Ag6  1  0.256  0.718  0.787  1.0
  Ag  Ag7  1  0.419  0.586  0.591  1.0
  Ag  Ag8  1  0.594  0.407  0.417  1.0
  Ag  Ag9  1  0.751  0.233  0.263  1.0
  Ag  Ag10  1  0.909  0.061  0.090  1.0
  Ag  Ag11  1  0.003  0.488  0.516  1.0
  Ag  Ag12  1  0.832  0.643  0.194  1.0
  Ag  Ag13  1  0.158  0.820  0.345  1.0
  Ag  Ag14  1  0.498  0.491  0.007  1.0
  Pb  Pb15  1  0.503  0.163  0.835  1.0
  Pb  Pb16  1  0.834  0.490  0.847  1.0
  Pb  Pb17  1  0.173  0.160  0.504  1.0
  Pb  Pb18  1  0.842  0.828  0.524  1.0
  Pb  Pb19  1  0.167  0.487  0.181  1.0
  Pb  Pb20  1  0.504  0.827  0.196  1.0
  O  O21  1  0.774  0.220  0.864  1.0
  O  O22  1  0.563  0.432  0.818  1.0
  O  O23  1  0.903  0.099  0.492  1.0
  O  O24  1  0.234  0.141  0.776  1.0
  O  O25  1  0.878  0.762  0.798  1.0
  O  O26  1  0.482  0.910  0.807  1.0
  O  O27  1  0.103  0.502  0.906  1.0
  O  O28  1  0.441  0.176  0.547  1.0
  O  O29  1  0.816  0.555  0.573  1.0
  O  O30  1  0.518  0.110  0.104  1.0
  O  O31  1  0.191  0.426  0.456  1.0
  O  O32  1  0.896  0.464  0.122  1.0
  O  O33  1  0.564  0.834  0.477  1.0
  O  O34  1  0.140  0.217  0.232  1.0
  O  O35  1  0.788  0.838  0.257  1.0
  O  O36  1  0.431  0.541  0.199  1.0
  O  O37  1  0.122  0.893  0.538  1.0
  O  O38  1  0.215  0.750  0.164  1.0
[/CIF]
.