anthracite
anthracite coal
hard coal

The district heating used 42% of hard coal in average 1990-2006, but its annual variation was small compared to the industry separate electricity generation.

The weight got off my back and the lumps of hard coal went away from my spine.

Power stations are fueled mainly by hard coal and lignite.

The local mining included zinc, lead, and hard coal.

The plant will produce synthesis gas by gasification of hard coal.

In the pits hard coal was mined to a depth of up to 15 meters.

The catch is that the "volumes" are sculptured from blocks of hard coal.

The company exports around 40 million tonnes of hard coal every year.

Heat is provided primarily by combined heat and power plants, most of which burn hard coal.

Don't carry many passengers in the winter, just timber and some hard coal.