Abstract

Abstract It is demonstrated that the Burgers vectors of dislocations in quartz can be positively identified from the results of conventional diffraction contrast experiments in the electron microscope. Dislocations having an a Burgers vector were found in experimentally-deformed natural and synthetic crystals, and dislocations with a c Burgers vector were also observed in a synthetic crystal. The factors that complicate the successful execution of diffraction contrast experiments on quartz are discussed.

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