Si 
 1.0000000000000000
     6.7708521196969329   -0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    6.7708521196969329   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    6.7708521196969329
 Si 
   8
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  3.3854260598484656  3.3854260598484656   T   T   T
  3.3854260598484656  3.3854260598484656 -0.0000000000000000   T   T   T
  3.3854260598484656 -0.0000000000000000  3.3854260598484656   T   T   T
  5.0781390897726979  1.6927130299242328  5.0781390897726979   T   T   T
  1.6927130299242326  1.6927130299242328  1.6927130299242326   T   T   T
  1.6927130299242326  5.0781390897726979  5.0781390897726979   T   T   T
  5.0781390897726979  5.0781390897726979  1.6927130299242323   T   T   T