productsgypsum مطحنة. Gypsum - Minerals For Sale - #80311726. Gypsum. specimen number: 80311726. location: Aaster quarries, Cerro Patillas, Fuentes de Ebro, Zaragoza, Aragon, Spain. description: Glassy gemmy colorless twinned crystals of gypsum to 1.5 cm in length across the front of this y sparkling gypsum crystal matrix.