Mg Sn 
 1.0000000000000000
     6.7568879265614674    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.7568879265614674   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    6.7568879265614674
 Mg  Sn 
   8   4
Selective dynamics
Cartesian
  1.6892219816403673  1.6892219816403671  1.6892219816403671   T   T   T
  5.0676659449211030  5.0676659449211021  1.6892219816403671   T   T   T
  5.0676659449211030  1.6892219816403671  5.0676659449211021   T   T   T
  1.6892219816403673  5.0676659449211021  5.0676659449211021   T   T   T
  1.6892219816403673  1.6892219816403669  5.0676659449211021   T   T   T
  5.0676659449211030  5.0676659449211021  5.0676659449211021   T   T   T
  1.6892219816403673  5.0676659449211021  1.6892219816403671   T   T   T
  5.0676659449211030  1.6892219816403669  1.6892219816403671   T   T   T
 -0.0000000000000000 -0.0000000000000004 -0.0000000000000004   T   T   T
  0.0000000000000000  3.3784439632807342  3.3784439632807342   T   T   T
  3.3784439632807346 -0.0000000000000004  3.3784439632807342   T   T   T
  3.3784439632807346  3.3784439632807342 -0.0000000000000004   T   T   T