O Si 
 1.0000000000000000
     5.0091665715692439    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    5.0091665715692439   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    7.4769208081907310
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.5870989160449858  1.2522916428923205  0.9346151010237697   T   T   T
  0.4220676555243097  3.7568749286769179  0.9346151010237697   T   T   T
  1.2522916428923239  0.4220676555243099  6.5423057071665394   T   T   T
  3.7568749286769583  4.5870989160449627  6.5423057071665394   T   T   T
  2.9266509413089441  1.2522916428923205  4.6730755051189483   T   T   T
  2.0825156302603678  3.7568749286769179  4.6730755051189483   T   T   T
  3.7568749286769583  2.9266509413089103  2.8038453030713684   T   T   T
  1.2522916428923239  2.0825156302603522  2.8038453030713684   T   T   T
 -0.0000000000000000  0.0000000000000000 -0.0000000000000000   T   T   T
  2.5045832857846477 -0.0000000000000000  5.6076906061427367   T   T   T
  2.5045832857846477  2.5045832857846411  3.7384604040950786   T   T   T
 -0.0000000000000000  2.5045832857846411  1.8692302020475393   T   T   T