Mining and Drilling Mineral Exploration and Extraction Industrial MineralsGSA Resources, Inc. Home Page - GSA Resources, Inc. produces the CABSORB(r) product line of zeolites, and specialty clay products. Welcome to GSA Resources, Inc. We are the recognized world leader in the development of industrial, consumer and environmental applications for zeolites. NEW: Newsletter Subscribe Unsubscribe Read Previous Issues As a primary supplier of zeolite minerals, GSA's corporate strategy is focused on the development of specialty and " Proprietary" applications that utilize these unique nat