Fig. 2
From: Unique formation of organic glass from a human brain in the Vesuvius eruption of 79 CE
Images at different magnifications of the C1 sample: (a) optical image under direct light. (b) FE-SEM image showing the angular shape of the fragments. (c), (d) FE-SEM images detail spherical voids clustering and stepped fracture. (e), (f) FE-SEM details of preserved neural structures; white arrows point to the best preserved axons.
