O Si 
 1.0000000000000000
     4.8751062552944422    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    4.8751062552944395   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    6.5648491224168195
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.1358449024927206  0.6379763869210903  1.2846877165143804   T   T   T
  3.7392613528017176  4.2371298683733434  4.5671122777227922   T   T   T
  1.7995767407261272  3.5733980301399386  2.9258999971185857   T   T   T
  3.0755295145683097  1.3017082251544978  6.2083245583269990   T   T   T
  1.3017082251544989  3.0755295145683093  0.3565245640898237   T   T   T
  3.5733980301399382  1.7995767407261274  3.6389491252982356   T   T   T
  0.6379763869210905  1.1358449024927200  5.2801614059024375   T   T   T
  4.2371298683733460  3.7392613528017171  1.9977368446940289   T   T   T
  1.5233299036138463  1.5233299036138459 -0.0000000000000000   T   T   T
  3.3517763516805923  3.3517763516805927  3.2824245612084098   T   T   T
  0.9142232240333727  3.9608830312610643  1.6412122806042049   T   T   T
  3.9608830312610648  0.9142232240333729  4.9236368418126126   T   T   T