What does "lemnian" mean?

Lemnian: 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.