[en] Cones formed on sputtered polycrystalline copper surfaces can, for certain grain orientations, develop large crystallographic facets and should therefore properly be described as pyramids. In a previous note it was indicated that, independent of possible secondary or tertiary effects, both the relative stability and the semiangle α of a cone are primary consequences of ion reflection from its surface, and that the disappearance of a cone (pyramid) can fundamentally be attributed to single (sputtering) atomic collisions. The authors purpose here is to show in addition how classical macroscopic concepts from the thermodynamics of the capillarity of solids may be used in part to describe the evolution of pyramids from cones. (Auth.)