 Na Mg F
   1.0
     3.9062049200000000    0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.9062049200000000    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.9062049200000000
 Na Mg F
   1   1   3
Direct
   0.0000000000000000  0.0000000000000000  0.0000000000000000
   0.5000000000000000  0.5000000000000000  0.5000000000000000
   0.5000000000000000  0.5000000000000000  0.0000000000000000
   0.5000000000000000  0.0000000000000000  0.5000000000000000
   0.0000000000000000  0.5000000000000000  0.5000000000000000