Everything was covered with a thick film of rock dust.

He reached down and picked up a handful of the rock dust.

The rock dust hung in the air, and then began to slowly settle.

Some were sifting through rock dust with their bare hands.

Finally she came to a halt in a room filled with rock dust and debris.

Soon there will be little but rock dust cemented together by water ice.

The rock dust at the corner of her eyes was slightly muddied.

This rock dust is then carried by wind and water over many widespread areas of the globe.

The cold wind whipped the fine white rock dust across the valley long after the fires died.

The masks, they say, take out most of the hydrocarbons and the rock dust.

The stuff would be treated like a concentrate, mixed into rock dust, and used as soil.

A bullet puffed rock dust and chips from the wall ahead of her.

She rose up and slapped gritty rock dust off her jeans.

With it came a smell of rock dust and molten minerals.

The duo ground the ore into rock dust to see its effects in a controlled environment.

A moment later, the girl burst into the room, her face flushed beneath a layer of rock dust.

He stood up, brushing rock dust off his trousers.

It takes bacteria to turn rock dust into fertile soil."

Rock dust and rust flakes drifted away on the breeze.

But with sheets of rock dust and larger debris, the naked eye was next to useless.

His curly brown hair was powdered with rock dust.

He took a deep breath, filling his lungs to capacity, but the air here always smelled of rock dust.

Rock dust boiled up, obscuring the beam before it had.

The roof sagged, the air white with rock dust.

Jordan rubbed it with his hand, brushing away a coating of rock dust.