Mg  O 
 1.0000000000000000
     3.4347742166088233    0.0000000000000000    0.0000000000000000
    -1.7173871083044117    2.9746017278470198   -0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.1491354333536750
 Mg  O  
   2   2
Selective dynamics
Cartesian
 -0.0000000171738790  1.9830678284800185  1.0372838583384183   T   T   T
  1.7173870911305409  0.9915339191976797  3.1118515750152573   T   T   T
 -0.0000000171738790  1.9830678284800185  3.1118515750152573   T   T   T
  1.7173870911305409  0.9915339191976797  1.0372838583384183   T   T   T