Extended Data Fig. 5: TEM data on coarse-grained sheet silicates from OREX-803096-100.
From: Mineralogical evidence for hydrothermal alteration of Bennu samples
(a) BF-TEM image shown in Fig. 2 with (b, c) SAED patterns from areas outlined by white dashed circles. Some of the coarser-grained sheet silicates in this FIB section are poorly ordered (minor faint reflections) to amorphous (diffuse intensity) as shown by the SAED patterns in (b) and (c), respectively. The spot mask is inserted in the SAED patterns to limit exposure by the direct beam.
