Specific features of quartz crystals lamellar structure

This report gives results of experimental investigations of the structural Al distribution in quartz crystals grown on seeds making desired angles with the face {101~0} (nonsingular faces (NF) of the zone [0001]). It has previously been shown that regeneration growth pyramids of these crystals possess a stepped growth surface formed by faces {1~120} and {101~0}. Moreover, certain relationships between the average sizes of the steps and the initial orientation of NF have been discovered. In this paper substructure of these crystals and the distribution of impurity centres in them are studied using thermoluminescence.