Every morning, coal trains rumbled past the old farmhouse, shaking the windows and stirring the dogs.

The coal train thundered past the small station at dawn, its wagons laden with coal.

The engineer adjusted the coal pusher to feed fuel evenly into the firebox during the long climb.

The coal pushers worked in shifts to keep the steam engines running through the harsh winter.

Miners uncovered a vein of day coal along the cliff face, revealing a rich seam ready for extraction.

Miners discovered glittering coal brass embedded in the shale of the old seam.

Paleobotanists identified a coal plant in the shale sample from the Carboniferous formation.

The old furnace owner preferred cherry coal for its bright luster and the way it crumbled into small, irregular cubes.

The old furnace needed a steady supply of block coal to keep the workshop warm through winter.

The antique dealer discovered several coal brasses beneath the floorboards.