13
Cu2O
 O    0.000000    0.000000    0.000000
 O    2.632500    2.632500    2.632500    
 O    0.000000    0.000000    5.265000    
 O    0.000000    5.265000    0.000000
 O    0.000000    5.265000    5.265000    
 O    5.265000    0.000000    0.000000
 O    5.265000    0.000000    5.265000    
 O    5.265000    5.265000    0.000000
 O    5.265000    5.265000    5.265000    
Cu    1.316250    1.316250    1.316250    
Cu    3.948750    3.948750    1.316250    
Cu    3.948750    1.316250    3.948750    
Cu    1.316250    3.948750    3.948750