= maltha, n. 2.

Originally: a viscid form of bitumen. Later: any of various softish, viscid forms of natural asphalt (also called mineral tar).

= maltha, n. 2.

A brown or black natural paraffin wax occurring in some bituminous shales and sandstones and formerly used to make candles, polishes, and electrical…

Any of a class of substances, found in nature in greater or less purity, including beeswax and other… A mineral product somewhat resembling bees-wax…

a fatty hydrocarbon found in the peatbogs of Ireland.

Any of a class of substances, found in nature in greater or less purity, including beeswax and other… gen.

The mineral ozokerite; natural paraffin wax.

An asphaltic mineral similar to albertite.