schroetterite

[After the Austrian chemist, Schrötter; suff. -ite ( Min.).] Min.: A gum-like mineral, amorphous. Hardne , 3-3-5; specific gravity, 1.95-2.05; color, shades of green, yellowish; translucent. Composition: A hydrated silicate of alumina, having the formula 8Al2O3,3SiO2+30HO. schuch-ard-tite, s. [After Dr. Schuchardt, of Görlitz; suff. -ite ( Min.); Ger. chrysopraserde.] Min.: An earthy substance consisting mostly of minute scales found with the chrysoprase of Kosemütz, Silesia. Composition: A hydrated silicate of alumina, magnesia, sesquiand protoxide of iron and nickel.