Anthracites [noun]

When pure and of close hard grain it is used as a refractory for lining furnaces, especially those designed for anthracite.

There are four types: bituminous (soft), anthracite (hard), semi-bituminous and semi-anthracite.

Tried at a measured mile with anthracite and Merthyr coal mixed, three years afterwards, her average speed was 11 knots.

He was of middle age, black as anthracite coal, bald-headed, (p. 226) and was dressed in pants and coat made of old sailcloth.

The cooking-range, a large one designed to burn anthracite coal, was the general warming apparatus.

He fitted up the boiler of the steamboat Passaic for it in 1818, and adopted anthracite as a steaming-coal.

He at the same time constructed eight-wheeled engines for heavy work, and adopted anthracite coal as fuel.

A more severe test came in 1902 during the great anthracite strike.

During the general strike of 1897 the United Mine Workers made a beginning in organizing the anthracite miners.

In none of the "trustified" industries, save anthracite coal, was labor organization able to make any headway.