Mg Si 
 1.0000000000000000
     4.0547000000000155    0.0000000000000000    0.0000000000000000
    -2.0273500000000078    3.5114732047247768    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.8114999999999988
 Mg  Si 
   4   2
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000
  0.0000000000000000  0.0000000000000000  2.4057499999999994
 -0.0000000000000001  2.3409821364831842  1.2028749999999997
  2.0273500000000078  1.1704910682415923  3.6086249999999991
 -0.0000000000000001  2.3409821364831842  3.6086249999999991
  2.0273500000000078  1.1704910682415923  1.2028749999999997