The origin of large gypsum crystals in the Geode of Pulpí (Almería, Spain) Canals, A. ; Van Driessche, A. E. S. ; Palero, F. ; García-Ruiz, J. M. Abstract Publication: Geology Pub Date: December 2019 DOI: 10.1130/G46734.1 Bibcode: 2019Geo....47.1161C