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Entre Nozay et Abbaretz, on retrouve des vestiges de l’exploitation de l’étain. Des études de faisabilité réalisées entre 1942 et 1944 mettent en évidence un gisement viable pour une exploitation à ciel ouvert. Cette exploitation du « bloc Hector Pétin » démarre en 1952. Elle prendra fin en 1957 après avoir produit 3 750 tonnes de cassitérite. La concession de la mine d’Abbaretz, pour l’exploitation de l’étain, cesse en 2004.