13
 Ih-geometric, coord. in A, nominal coordination
  Ag   0.00000   0.00000   0.00000     0
  Ag   2.45412   1.51673   0.00000     0
  Ag   2.45412  -1.51673   0.00000     0
  Ag  -2.45412   1.51673   0.00000     0
  Ag  -2.45412  -1.51673   0.00000     0
  Ag   1.51673   0.00000   2.45412     0
  Ag   1.51673   0.00000  -2.45412     0
  Ag  -1.51673   0.00000   2.45412     0
  Ag  -1.51673   0.00000  -2.45412     0
  Ag   0.00000   2.45412   1.51673     0
  Ag   0.00000   2.45412  -1.51673     0
  Ag   0.00000  -2.45412   1.51673     0
  Ag   0.00000  -2.45412  -1.51673     0