Extended Data Fig. 7: Control results from from Ir-coated quartz with gold chloride (AuCl4) experiment. | Nature Geoscience

Extended Data Fig. 7: Control results from from Ir-coated quartz with gold chloride (AuCl4) experiment.

From: Gold nugget formation from earthquake-induced piezoelectricity in quartz

Extended Data Fig. 7

Imagery of the Ir-coated quartz crystal control slab for the AuCl4 solution experiment. Sample was submerged but not deformed. (a) EDS image of the quartz control sample surface. (b) BSE image of the quartz control sample surface. Inset shown at higher magnification. (c) EDS spectra of area in (a). BSE: Backscattered electron. EDS: Energy dispersive spectroscopy.

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