O Si 
 1.0000000000000000
     6.5252011294992567    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.5252011294992558    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.4144725014598940
 O   Si 
  16   8
Selective dynamics
Cartesian
  2.2195378459780906  2.2195378459780906  2.1036181253649748   T   T   T
  4.3056632835211630  4.3056632835211683  2.1036181253649748   T   T   T
  2.2195378459780906  4.3056632835211683  6.3108543760949223   T   T   T
  4.3056632835211630  2.2195378459780906  6.3108543760949223   T   T   T
 -0.0000000000000009  3.2626005647496275  5.2719425031065708   T   T   T
  3.2626005647496252 -0.0000000000000009  3.1425299983533308   T   T   T
 -0.0000000000000009  3.2626005647496275  1.0647062523766198   T   T   T
  3.2626005647496252 -0.0000000000000009  7.3497662490832774   T   T   T
  2.0211725164836367  2.1332897172688301  7.9816395446521478   T   T   T
  4.5040286130156142  4.3919114122304261  7.9816395446521478   T   T   T
  2.1332897172688279  4.5040286130156160  0.4328329568077516   T   T   T
  4.3919114122304235  2.0211725164836403  0.4328329568077516   T   T   T
  2.0211725164836367  4.3919114122304261  3.7744032939221990   T   T   T
  4.5040286130156142  2.1332897172688301  3.7744032939221990   T   T   T
  2.1332897172688279  2.0211725164836403  4.6400692075377030   T   T   T
  4.3919114122304235  4.5040286130156160  4.6400692075377030   T   T   T
  3.4912757916135835  1.5606056468032834  7.5758168859063764   T   T   T
  3.0339253378856665  4.9645954826959677  7.5758168859063764   T   T   T
  1.5606056468032823  3.0339253378856683  0.8386556155535222   T   T   T
  4.9645954826959651  3.4912757916135879  0.8386556155535222   T   T   T
  3.4912757916135835  4.9645954826959677  3.3685806351764285   T   T   T
  3.0339253378856665  1.5606056468032834  3.3685806351764285   T   T   T
  1.5606056468032823  3.4912757916135879  5.0458918662834726   T   T   T
  4.9645954826959651  3.0339253378856683  5.0458918662834726   T   T   T