cassel-earth
Cas"sel brown, Cas"sel earth . Defn: A brown pigment of varying permanence, consisting of impure lignite. It was found originally near Cassel (now Kassel), Germany.
Cas"sel brown, Cas"sel earth . Defn: A brown pigment of varying permanence, consisting of impure lignite. It was found originally near Cassel (now Kassel), Germany.