# Stacking Fault Tetrahedra in Gold

| This micrograph shows what you find when you quench Au from high temperature, trying to quench in the thermal equilibrium vacancies.
|  | The vacancies had enough time to agglomerate to some extent, and their preferred form of agglomerate - as in many other fcc crystals - are stacking fault tetrahedra.

With frame

5.4.3 Some Details for Specific Lattices

© H. Föll (Defects - Script)