European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 36, issue 5
Articles | Volume 36, issue 5
https://doi.org/10.5194/ejm-36-709-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/ejm-36-709-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 5
Research article
 | 
04 Sep 2024
Research article |  | 04 Sep 2024

Dauphiné twin in a deformed quartz: characterization by electron channelling contrast imaging and large-angle convergent-beam diffraction

Nobuyoshi Miyajima, Danielle Silva Souza, and Florian Heidelbach

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Latest update: 26 Sep 2026
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Short summary
Dauphiné twin (DT) domains in a deformed quartz were visualized for the first time by using orientation-optimized electron channelling contrast imaging under Bragg conditions of the rhombohedral planes. The different contrast of a pair of DT domains in the backscattered electron images originates not from a misorientation between the two domains but from different diffraction intensities between positive and negative rhombohedral planes in quartz.
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