Ca Si 
 1.0000000000000000
     3.6146412165402517    0.0000000000000000   -0.0000000000000000
    -1.8073206082701259    3.1303711190901455   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    5.3613541608213442
 Ca  Si 
   1   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000010  2.0869140793934298  3.1392369643591569   T   T   T
  1.8073206082701259  1.0434570396967149  2.2221171964621873   T   T   T