Moura, António, José Lopes Velho, and Willy Alves. 2015. “Preliminary Studies of the Palygorskite Deposit from Figueiró Do Campo (Soure, Portugal)”. Cadernos do Laboratorio Xeolóxico de Laxe. Revista de Xeoloxía Galega e do Hercínico Peninsular 38 (October):93-106. https://doi.org/10.17979/cadlaxe.2015.38.0.3685.