O Si 
 1.0000000000000000
     4.6325863715024758   -0.3455093413934220   -0.3653754568239142
    -1.5273506457292196    4.5758418457846348   -0.0491771890940720
    -0.8260468759072123   -0.3590117949670241    6.3765951337081885
 O   Si 
   8   4
Selective dynamics
Cartesian
  2.1227603844060625  2.9271944512083055  1.6908745962917058   T   T   T
 -0.1515099663169084  2.3859039287199999  2.6206840151113044   T   T   T
 -1.0661650808899581  4.2073632037691242  4.2089961473795290   T   T   T
  5.2388752700379317  0.1055882384720841  0.8841656818492580   T   T   T
  1.1262550337687756  4.0039050707573418  5.5662279458219786   T   T   T
  1.8949891199269384  1.9189282906412637 -0.3210543828453726   T   T   T
 -0.4018459308905633  2.8501069905075682  0.2704955915277267   T   T   T
  2.4078110189629962  1.3867999890922431  3.7839277927033828   T   T   T
  2.8635445661260150  3.3885588115179561  0.1667945082253680   T   T   T
 -1.4922492425981597  2.9218629696567109  3.3370442615579528   T   T   T
  0.7201888951016825  2.0693380507889723  1.1810849211973180   T   T   T
  1.6544522331143501  0.5122370764889901  4.9357330772192514   T   T   T