Ca Si 
 1.0000000000000000
     3.9235594961167859   -0.0000000000000000   -0.0000000000000000
    -1.9617797480583929    3.3979021968968071   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    2.9620319102208770
 Ca  Si 
   1   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000005  2.2652681312645377  1.4810159551104389   T   T   T
  1.9617797480583923  1.1326340656322691  1.4810159551104389   T   T   T