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Chapter and Conference Paper
Characterization of a (021) twin in coesite using LACBED and precession electron diffraction
Coesite is a high-pressure polymorph of silica stable in the pressure range 2.5–9 GPa, which corresponds to a minimum depth in Earth of ca. 90 km. Given the ubiquity of silica at the surface of the Earth, coes...
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Chapter and Conference Paper
Precession Electron Diffraction for the characterization of twinning in pseudo-symmetrical crystals: case of coesite
Recent developments in electron diffraction call for a reappraisal of the possibilities offered by spot patterns. Among them is the Vincent-Midgley Precession Electron Diffraction (PED) technique [1], which re...
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Chapter
Deformations in Minerals
Minerals submitted to tectonic stresses may deform plastically, i.e., continuously at the lattice scale. Various mechanisms of plastic deformation may be involved, depending on several parameters, e.g., temper...