Extended Data Fig. 6: Results from Ir-coated quartz with gold chloride (AuCl4) experiment.
From: Gold nugget formation from earthquake-induced piezoelectricity in quartz
Imagery of the Ir-coated quartz crystal slab after deformation within AuCl4 solution. (a) BSE image of the quartz surface exhibiting distribution of gold particles deposits from AuCl4 solution. Linear arrays, or ‘branches’, of gold particles can be seen. (b) and (c) are BSE and SE images, respectively, of the square area outlined in (a). Coupling of gold particles is evident as well as a pseudo-hexagonal Au nanocrystal. (d) EDS image of the square area in (a) highlighting the chemistry of sample area. BSE: Backscattered electron. SE: Secondary electron. EDS: Energy dispersive spectroscopy.
