Mg  Y 
 1.0000000000000000
     3.7614421532405631   -0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    3.7614421532405631   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    3.7614421532405631
 Mg  Y  
   1   1
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.8807210766202818  1.8807210766202818  1.8807210766202818   T   T   T