\^▐män-t^әn-\ n [L montanus of a mountain] (1908) (lignite wax) A hard, white wax derived from lignite, (a lower-grade hydrocarbon fossil mineral between peat and bituminous coal). It is sometimes described as a bitumen wax. The crude product is very dark in color, almost black, but after refining it becomes pale yellow. Its mp varies from 72°C to 82°C; its acid value, from 25 to 99; and its saponification value, from 58 to 104. The wax is used as a mold lubricant.