9
Empilement_NN fraction
 O    0.000000    0.000000    1.155000    
 O    1.155000    0.000000    1.155000    
 O    1.155000    0.000000    0.000000
 O    0.000000    0.000000    0.000000
 O    0.000000    1.155000    1.155000    
 O    1.155000    1.155000    1.155000    
 O    0.000000    1.155000    0.000000
 O    1.155000    1.155000    0.000000
 O    0.577350    0.577350    0.577350    
