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Faujasite-Mg: (Mg,Na2,Ca)3.5[Al7Si17O48]·32(H2O)
Comments: Colorless octahedra of faujasite-Mg in basalt vesicles. Location: Limburg Quarries, Sasbach, Kaiserstuhl, Baden-Wurttemberg, Germany. Scale: See Image. © Rruff Database