Silicon diamond structure
   5.47000000000000
     1.0000000000000000    1.0000000000000000    0.0000000000000000
     0.0000000000000000    1.0000000000000000    1.0000000000000000
     1.0000000000000000    0.0000000000000000    1.0000000000000000
  Si
    15
Direct
  0.0000000000000000  0.0000000000000000  0.0000000000000000 
  0.1249687981625905  0.1249687981625905  0.1249687981625905 
  0.0000000000000000  0.0000000000000000  0.4999900184039237 
  0.1247585860857417  0.1247585860857417  0.6253233911139059 
  0.0000000000000000  0.4999900184039237  0.0000000000000000 
  0.1247585860857417  0.6253233911139059  0.1247585860857417 
  0.0000000000000000  0.5005949526724762  0.5005949526724762 
  0.1261303023934993  0.6254693823419519  0.6254693823419519 
  0.4999900184039237  0.0000000000000000  0.0000000000000000 
  0.6253233911139059  0.1247585860857417  0.1247585860857417 
  0.5005949526724762  0.0000000000000000  0.5005949526724762 
  0.6254693823419519  0.1261303023934993  0.6254693823419519 
  0.5005949526724762  0.5005949526724762  0.0000000000000000 
  0.6254693823419519  0.6254693823419519  0.1261303023934993 
  0.5024415118349006  0.5024415118349006  0.5024415118349006  
