Final refinements

Step 1

For a (fine-)tuning of the crystal description we recommend the use of the command tilt. The individual faces are tilted with respect to the rest of the crystal. The face indices can get large numbers during this procedure. The program user should decide, whether this makes sence (was the crystal cut?).

Further steps

(Repeated) refinements of tilt, distance, and volume should lead to an optimal crystal description.

Last refinement

The last refinement should always be a volume refinement, to check the quality of the minimum of the refinement.