title Y2O3, cubic bixbyite structure from Wycoff 
rmax=7.0   Space  I A 3
a=10.604   core   y2
atom
! At.type  x         y        z       cent.
   Y      0.25      0.25     0.25     y1
   Y     -0.0314    0.0      0.25     y2
   O      0.389     0.150    0.377    
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