Abstract
In the vicinity of the ancient Roman city of Segobriga, evidence of significant mining activity during Roman times has been found, especially linked to the exploitation of lapis specularis, a material in high demand for construction purposes. It is a type of crystallized plaster that is naturally found in high concentrations. Due to its composition, it is easily exfoliable and large flakes can be obtained that can reach two meters in length.
This mining industry reached its peak between the 1st and 2nd centuries AD. In Hispania it stood out for its quality and exceptional qualities. Its commercialization produced great benefits and great prosperity in those areas where it was exploited and, in many cases, served as an element to strengthen their Romanization. In cities like Segobriga, the urban and economic development derived from the exploitation of this material mainly favored their local elites.
