  13
beta-Np & P4/nmm (D^7_{4h}) #129 & tP4 & A_d & Donohue, p. 154
Np     1.22425000     1.22425000     1.27050000
Np     1.22425000     3.67275000     3.38800000
Np     3.67275000     1.22425000     3.38800000
Np     1.22425000     1.22425000     4.65850000
Np     3.67275000     3.67275000     2.11750000
Np     1.22425000     6.12125000     1.27050000
Np     3.67275000     6.12125000     3.38800000
Np     1.22425000     6.12125000     4.65850000
Np     6.12125000     1.22425000     1.27050000
Np     6.12125000     3.67275000     3.38800000
Np     6.12125000     1.22425000     4.65850000
Np     6.12125000     6.12125000     1.27050000
Np     6.12125000     6.12125000     4.65850000
