Figure 8
(a) SAED, (b) CBED and (c) montage of 21 D-LACBED patterns taken from [111]PC NaBiCaTeO6. Arrows mark Gjønnes-Moodie lines, indicating the presence of a 21 axis along [[{\overline 1}10]]PC and a ([{\overline 1}10]PC mirror-glide plane. The whole-pattern symmetry is 2mm and the projection diffraction group is 2mm1R.  [article HTML]