stassfurtiteMin.|ˈstæsfɜːtaɪt| Also stassfurthite. [Named (Ger.stassfurtit) in 1856 after Stassfurt in Prussia, its locality: see -ite.] A massive variety of boracite. 1858J. Nicol Elem. Mineral 212 Stassfurthite.1865P. H. Lawrence Lithol. 95 Boracite (Stassfurtite).