O Si 
 1.0000000000000000
     5.0328163295990764    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.8840109990253353    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.0362110953489658
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.9355044124022562  3.0897055341221016  1.5177087154253202   T   T   T
  0.0973119171968220  3.7943054649032333  4.0358142630998026   T   T   T
  2.4190962476027127  0.3522999653905659  1.5177087154253202   T   T   T
  2.6137200819963629  6.5317110336347728  4.0358142630998026   T   T   T
  4.2801514839330697  5.5198263575066946  2.2619193653579646   T   T   T
  0.7526648456660019  1.3641846415186445  4.7800249130324435   T   T   T
  1.7637433191335365  4.8061901410313119  2.2619193653579646   T   T   T
  3.2690730104655392  2.0778208579940207  4.7800249130324435   T   T   T
  4.7692764959271647  2.5872463552274767  5.0337916478265274   T   T   T
  0.2635398336719103  4.2967646437978528  2.5156861001520445   T   T   T
  2.2528683311276292  0.8547591442851881  5.0337916478265274   T   T   T
  2.7799479984714490  6.0292518547401484  2.5156861001520445   T   T   T