抄録
Singnificance and importance of surface microtopography of crystal faces in the studies of crystal growth mechanisms are discussed. Morphology of growth spirals is defined by 1) the degree of polygonization, and 2) the step separations. These are related to α, φ_<ss>,φ_<sf>,φ_<ff>, T, γ, Δμ. The observed morphologies of growth spirals are confronted with the computer simulated spirals, and are analysed in terms of the above factors. The surface microtopographies of crystal faces formed in different phases and environmental conditions are compared and analysed based on the modern theoretical achievements on spiral morphology. The relation between surface microtopography and external morphology of crystals is discussed.