faujasiteMin.|ˈfoːʒəsaɪt| [Named after Faujas de Saint-Fond, French geologist: see -ite.] 1844Dana Min. 524 Faujasite occurs in square octahedrons.1863–72Watts Dict.Chem. II. 617 Faujasite, a silicate occurring, together with black augite in the mandelstein of the Kaiserstuhl in Baden.