This article presents the results of contextual research and archaeological experimentation carried out in relation to the social and ritual role played by the manufacture of copper ore objects (beads, pendants and plaques, mainly), and their various
contexts of use in the Atacama salt flat for the Middle Horizon (ca. 400-1000 AD). Our analysis - focused on the comprehensive observation of the elements that made up the burial offerings of Quitor 6 cemetery in San Pedro de Atacama - throws light
on the renewed importance gained by this industry during the Middle Horizon. At the same time, it reveals hitherto unknown details about the specialization and differential distribution of lapidary manufacture within the Atacamenian society. Through the application of archaeological experimentation, the original function of a wooden artifact has been established, which turns out to be the base or support used specifically for the drilling of beads. New information is also presented about certain funerary ritual gestures associated with copper ore, data that reinforce the special bond that existed for thousands of years between the mineral, the Atacamenian communities (ayllus) and the objects offered to their ancestors or deities. We consider that this set of evidence strongly suggests that the population buried in Quitor 6 cemetery could correspond to a group specialized in copper ore lapidary manufacture.

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