Lemnian \Lem"ni*an\ (l[e^]m"n[i^]*an), a. [L. Lemnius, fr. Lemnus, Gr. Lh^mnos.] Of or pertaining to the isle of Lemnos. {Lemnian bole}, {Lemnian earth}, an aluminous earth of a grayish yellow color; sphragide; -- formerly sold as medicine, having astringent properties. {Lemnian reddle}, a reddle of firm consistence and deep red color; -- used by artificers in coloring.