Materias primas en las pastas cerámicas de origen volcánico en la cerámica canariadescripción y caracterización geotécnica

Resum

The semi-artisanal weaving factory is a trade that has practically disappeared in the Canary Islands, and the production of earthenware is being conserved by a few potters who have shown their particular interest in maintaining the craft, and now their pieces are just decorative objects or souvenirs, far from the domestic use they used to have. The current generation uses a very similar terminology for raw materials, regardless of the island where they work. This is due to the fact that they consult the bibliographic sources about the last loceras of the Archipelago, to the greater communication between loceros/as because of the contact between themselves in insular handcraft fairs, or regional ones... as well as in promotion congresses organized by institutions. However, when ceramics were a livelihood in particular potters' centres of the Archipelago, the loceras called the materials according to the local terms transmitted to them by their predecessors, and the same term not always identified equal characteristics materials. In this work, ethnographic references on raw materials are collected, providing an overview and comparison of them, while an attempt of description of them has been tried by providing some more geotechnical data to facilitate the understanding of their behaviour in the ceramic processes.