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Figure 5
(Left) White-beam topography of crack segment c1c (large-area transmission, high-resolution photographic film), showing lines at the cleavage plane related to the 13 crack tip jumps shown in Fig. 4[link](b) (indicated by black arrows). (Right) The same crack segment in infrared transmission bright field. At approximately jump No. 8, the crack segment c1c deflects from [(h k {\overline l})] to (hkl) with the opposite sense of inclination.

IUCrJ
Volume 3| Part 2| March 2016| Pages 108-114
ISSN: 2052-2525
doi:10.1107/S205225251502271X