mineral tar

The chief were wine, coal, timber, mineral tar, fertilizers and lobsters and crayfish.

A kind, called mineral tar, is also drawn from coal by the process of distillation.

In the vicinity of Los Angeles there are a number of warm springs which throw out and deposit large quantities of bitumen or mineral tar.

We saw the same kind of roof material as before, a sort of mineral tar which I supposed they must find somewhere about.

This is the mine of chapapote or mineral tar of the country.