Ca Si 
 1.0000000000000000
     6.2904181779646269    0.0000000000000001   -0.0000000000000000
    -3.1452090889823134    5.4476619425447907    0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   12.7778377578041109
 Ca  Si 
   1   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000005444  3.6317746283631771  8.9704176644737146   T   T   T
  3.1452090889821700  1.8158873141815888  3.8074200933302742   T   T   T