The etch-patterns due to helical dislocations are discussed. It is suggested that under certain conditions the etching of a helical dislocation gives rise to a spiral etch-pit of the kind observed on germanium and silicon crystals. Etch-patterns on (111) faces of fluorite crystals containing helical dislocations can readily be interpreted on the same basis.
No takes yet. Share an insight, caveat, or question.
Amklinckx et al. (1957) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: