O Si 
 1.0000000000000000
     4.9745971509632891   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.9745971509632891    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    6.7101405881864018
 O   Si 
   8   4
Selective dynamics
Cartesian
  1.1750355232035758  0.5814368350195939  1.2357132850921493   T   T   T
  3.7995616277597128  4.3931603159436934  4.5907835791853477   T   T   T
  1.9058617404620497  3.6623340986852195  2.9132484321387517   T   T   T
  3.0687354105012377  1.3122630522780676  6.2683187262319509   T   T   T
  1.3122630522780678  3.0687354105012385  0.4418218619544510   T   T   T
  3.6623340986852204  1.9058617404620497  3.7968921560476501   T   T   T
  0.5814368350195945  1.1750355232035763  5.4744273030942558   T   T   T
  4.3931603159436960  3.7995616277597128  2.1193570090010496   T   T   T
  1.5434617625498441  1.5434617625498439  0.0000000000000000   T   T   T
  3.4311353884134461  3.4311353884134466  3.3550702940932005   T   T   T
  0.9438368129318002  4.0307603380314880  1.6775351470466002   T   T   T
  4.0307603380314880  0.9438368129318004  5.0326054411398031   T   T   T