wadd
Wad, Wadd, n. (Min.) (a) An earthy oxide of manganese, or mixture of different oxides and water, with some oxide of iron, and often silica, alumina, lime, or baryta; black ocher. There are several varieties. (b) Plumbago, or black lead.
Wad, Wadd, n. (Min.) (a) An earthy oxide of manganese, or mixture of different oxides and water, with some oxide of iron, and often silica, alumina, lime, or baryta; black ocher. There are several varieties. (b) Plumbago, or black lead.