O Si 
 1.0000000000000000
     4.8153790684367035   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.8153790684367026   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    7.1481960110165952
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.2946195551358910  1.2038447671091759  0.8935245013770744   T   T   T
  0.5207595133008106  3.6115343013275272  0.8935245013770744   T   T   T
  1.2038447671091761  0.5207595133008107  6.2546715096395200   T   T   T
  3.6115343013275272  4.2946195551358910  6.2546715096395200   T   T   T
  2.9284490475191625  1.2038447671091759  4.4676225068853732   T   T   T
  1.8869300209175397  3.6115343013275272  4.4676225068853732   T   T   T
  3.6115343013275272  2.9284490475191629  2.6805735041312246   T   T   T
  1.2038447671091761  1.8869300209175397  2.6805735041312246   T   T   T
  0.0000000000000000  0.0000000000000000 -0.0000000000000000   T   T   T
  2.4076895342183522 -0.0000000000000000  5.3611470082624493   T   T   T
  2.4076895342183522  2.4076895342183517  3.5740980055082976   T   T   T
  0.0000000000000000  2.4076895342183517  1.7870490027541488   T   T   T