Abstract.A large amount of long lasting experiments, carried out by the first author with the supervision of coauthoring experts in electrical imaging and Turin Shroud (TS) studies, was addressed to obtain TS-like impressions. To this end, the experiments was especially performed by using conducting objects previously enveloped in two-folded cloths, then inserted into a gap bounded by a pair of rocky plates. The prerequisite for image formation seems to be an especially abundant emission of radon, related to earthquakes, ultimately giving rise to a macro-scale background electric field of the order of 1 kV/m in the gap and, more importantly, to micro-scale field amplification. This additional field is localized in the air filled interstices of the exposed fabric, thus causing consequent aging. In spite of the complicate and unpredictable character of the natural phenomenology under examination, the investigators succeeded in categorizing different kinds of impressions and selecting one of them as being thoroughly successful. Specifically, the images of the selected category do exhibit basic physicochemical and optical features distinctive of the figure impressed on the Turin Shroud.