O Si 
 1.0000000000000000
     9.4369790577205492   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    9.4369790577205350   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    4.4724550263108620
 O   Si 
  16   8
Selective dynamics
Cartesian
  2.3592447644301373  2.3592447644301338 -0.0000000000000000   T   T   T
  7.0777342932904128  7.0777342932903959 -0.0000000000000000   T   T   T
  7.0777342932904128  2.3592447644301338 -0.0000000000000000   T   T   T
  2.3592447644301373  7.0777342932903959 -0.0000000000000000   T   T   T
  2.3592447644301373  2.3592447644301338  2.2362275131554301   T   T   T
  7.0777342932904128  7.0777342932903959  2.2362275131554301   T   T   T
  7.0777342932904128  2.3592447644301338  2.2362275131554301   T   T   T
  2.3592447644301373  7.0777342932903959  2.2362275131554301   T   T   T
  6.4991906609421743 -0.0000000000000000  0.0000000000000000   T   T   T
  2.9377883967783798 -0.0000000000000000 -0.0000000000000000   T   T   T
 -0.0000000000000000  6.4991906609421628 -0.0000000000000000   T   T   T
 -0.0000000000000000  2.9377883967783731 -0.0000000000000000   T   T   T
  7.6562779256386513  4.7184895288602675 -0.0000000000000000   T   T   T
  1.7807011320818973  4.7184895288602675 -0.0000000000000000   T   T   T
  4.7184895288602746  7.6562779256386353 -0.0000000000000000   T   T   T
  4.7184895288602746  1.7807011320818928 -0.0000000000000000   T   T   T
  6.1150324923414372  1.3965429634811581  3.7256598604855791   T   T   T
  3.3219465653791147  8.0404360942393769  3.7256598604855791   T   T   T
  8.0404360942393946  6.1150324923414274  3.7256598604855791   T   T   T
  1.3965429634811606  3.3219465653791076  3.7256598604855791   T   T   T
  3.3219465653791147  1.3965429634811581  0.7467951658252763   T   T   T
  6.1150324923414372  8.0404360942393769  0.7467951658252764   T   T   T
  1.3965429634811606  6.1150324923414274  0.7467951658252763   T   T   T
  8.0404360942393946  3.3219465653791076  0.7467951658252763   T   T   T