O Si 
 1.0000000000000000
     7.0096981409109391    0.0000000000000000    0.0000000000000000
     0.0000000000000000    7.0096981409109391    0.0000000000000000
     0.0000000000000000    0.0000000000000000    7.0096981409109391
 O   Si 
  16   8
Selective dynamics
Cartesian
  1.0882922407863351  1.0882922407863351  1.0882922407863351   T   T   T
  2.4165568296691338  5.9214059001246069  4.5931413112418067   T   T   T
  5.9214059001246069  4.5931413112418067  2.4165568296691338   T   T   T
  4.5931413112418067  2.4165568296691338  5.9214059001246069   T   T   T
  4.4628352658678878  4.6604649944116883  0.2556741976270240   T   T   T
  6.0517119454985249  2.3492331464992522  3.7605232680824918   T   T   T
  2.5468628750430540  1.1556159239562180  3.2491748728284464   T   T   T
  0.9579861954124171  5.8540822169547244  6.7540239432839160   T   T   T
  0.2556741976270240  4.4628352658678878  4.6604649944116883   T   T   T
  3.7605232680824918  6.0517119454985249  2.3492331464992531   T   T   T
  3.2491748728284464  2.5468628750430540  1.1556159239562176   T   T   T
  6.7540239432839160  0.9579861954124169  5.8540822169547244   T   T   T
  4.6604649944116883  0.2556741976270240  4.4628352658678878   T   T   T
  2.3492331464992531  3.7605232680824918  6.0517119454985249   T   T   T
  1.1556159239562176  3.2491748728284464  2.5468628750430540   T   T   T
  5.8540822169547244  6.7540239432839160  0.9579861954124174   T   T   T
  2.0171787181425498  2.0171787181425498  2.0171787181425498   T   T   T
  1.4876703523129191  4.9925194227683889  5.5220277885980211   T   T   T
  4.9925194227683889  5.5220277885980211  1.4876703523129187   T   T   T
  5.5220277885980211  1.4876703523129193  4.9925194227683889   T   T   T
  0.1606971685042517  0.1606971685042517  0.1606971685042517   T   T   T
  3.3441519019512187  6.8490009724066887  3.6655462389597209   T   T   T
  6.8490009724066887  3.6655462389597209  3.3441519019512187   T   T   T
  3.6655462389597209  3.3441519019512187  6.8490009724066887   T   T   T