Elektronenbeugung auf metamiktem Ampangabeit aus Madagaskar

Electron-Diffraction Analysis of Clay Mineral Structures

“…This conclusion is also supported by the work of Habel (1958), who obtained an electron-diffraction pattern from a film preparation of powdered ampangab6ite from the Malagasy republic, whereas the X -ray method gave the pattern of an amorphous substance. It should, however, be recognized that an explanation of the effectiveness of electron-diffraction methods in the study of metamict minerals awaits further basic investigations.…”