Fig. 11From: Retrograde alterations of phyllosilicates in low-grade metapelite: a case study from the Szendrő Paleozoic, NE-HungaryTEM image and SAED pattern of halloysite (sample 13.0 m) (a). SAED pattern with reflections of two phases: mica (10 Å) and kaolinite (7.3 Å) (sample 7.6 m) (b) and high resolution image of the rolled 7 Å phase. c The Fourier transform of ca. 100 Å × 100 Å area in the middle (1) of the tube shows hk0 projection, while at the border (2) proves the 7 Å periodicity along c* (sample 13.0 m)Back to article page