Figure 2
Quartz file data (Levien
et al., 1980;
http://rruff.geo.arizona.edu/AMS/xtal_data/CIFfiles/00788.cif
) loaded with symmetry applied, but not packed (load quartz.cif {1 1 1}). Symmetry operations
that would create atoms in an adjacent unit cell are `normalized'
to move those atoms back into cell 555. |