Min. [ad. G. stilpnomelan (Glocker 1827) f. Gr. στιλπνό-ς glittering + μελαν-, μέλας black.] A hydrous silicate of iron and aluminium, occurring in thin scales, or as a velvety coating, of a black or bronze color.
1850. Ansted, Elem. Geol., Min., etc. 198.
1854. Dana, Syst. Min. (ed. 4), II. 287.
