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Electron Diffraction Patterns of Plesiotwinning of Fe‐Illite
Author(s) -
Tao CHEN,
Daizhang CHEN,
Hejin WANG
Publication year - 2005
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2005.tb00897.x
Subject(s) - selected area diffraction , illite , crystallography , electron diffraction , diffraction , lattice (music) , reflection high energy electron diffraction , crystal structure , electron , materials science , chemistry , physics , mineralogy , optics , nuclear physics , acoustics , clay minerals
A new selected area electron diffraction (SAED) pattern was found from Fe‐illite. The lattice of the ED pattern can be described as a compound tessellation of (3,6)[79{3,6}], which is based on a large coincidence‐site lattice (CSL) with oriented crystal associations rotated by a non‐crystallographic angle 26°. This phenomenon corresponds to the plesiotwinning of Fe‐illite and has been never reported in the nature so far.