O Si 
 1.0000000000000000
     4.8630519515603989   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.8630519515603989   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    7.3626814897836281
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.3854189642721311  1.2157629878901000  0.9203351862229537   T   T   T
  0.4776329872882675  3.6472889636703005  0.9203351862229537   T   T   T
  1.2157629878901000  0.4776329872882680  6.4423463035606794   T   T   T
  3.6472889636702974  4.3854189642721337  6.4423463035606794   T   T   T
  2.9091589630684669  1.2157629878901000  4.6016759311147721   T   T   T
  1.9538929884919323  3.6472889636703005  4.6016759311147721   T   T   T
  3.6472889636702974  2.9091589630684682  2.7610055586688631   T   T   T
  1.2157629878901000  1.9538929884919332  2.7610055586688631   T   T   T
 -0.0000000000000000  0.0000000000000000 -0.0000000000000000   T   T   T
  2.4315259757801999 -0.0000000000000000  5.5220111173377262   T   T   T
  2.4315259757801999  2.4315259757801999  3.6813407448918150   T   T   T
  0.0000000000000000  2.4315259757801999  1.8406703724459075   T   T   T