As a result, there would have been little or no coal dust in the air, he said.

She knew without a doubt that those eyes were dark as coal dust.

And we can scrape the coal dust off the floor.

And not too clean, for they have been playing on ground that is largely coal dust.

Their children come home from school sick, covered with coal dust.

He was kneeling before the fire, his hands and face black with coal dust.

Your nails will be filled with coal dust when the time comes.

There was no way his poor lungs could survive coal dust along with everything else.

At least some of the coal dust had come off, and they were looking a little whiter.

Coal dust did work but damned near blew his head off.