$cell vectors
1.0
  6.5959968963064783    0.0000000000000000    0.0000000000000000
  0.0000000000000000    6.5959968963064783    0.0000000000000000
  0.0000000000000000    0.0000000000000000    5.1646975697929172
 2 4
Direct
  0.0000000000000000    0.0000000000000000    0.0000000000000000 # Zn1
  0.5000000000000000    0.5000000000000000    0.4999999999999996 # Zn2
  0.3400000000000003    0.1599999999999998    0.2499999999999998 # Sb1
  0.1599999999999998    0.6599999999999999    0.7499999999999992 # Sb2
  0.6599999999999999    0.8400000000000003    0.2499999999999998 # Sb3
  0.8400000000000003    0.3400000000000003    0.7499999999999992 # Sb4
