I wonder if that was volcanic dust we slept in.

"There must have been some volcanic dust in the heavens," he said.

A haze of volcanic dust was sweeping by in the wind.

He is also known to eat volcanic dust as a dietary supplement.

Probably volcanic dust in the air, he decided, acting al- most like smoked glass.

The road was volcanic dust, as red as dried blood.

His guess about volcanic dust in the air causing the sunset colors had been right.

Then they took off in yet another shower of the volcanic dust which would eventually bury Landing.

The Navy would no longer tolerate volcanic dust and mud tracked inside.

Is there such a thing as volcanic dust?

Atmospheric conditions were affected a great deal by the presence of volcanic dust in the air from the recent eruption.

A slight breeze stirred up the fine volcanic dust which scraped at the skin and eyes.

Thick volcanic dust carrying all manner of plagues hung in low clouds.

Other experts disputed his claim and insisted that Venus's clouds were only volcanic dust.

Coming back after dark, his skimmer covered with volcanic dust, Heston was having none of this.

This was due to the appearance of great quantities of volcanic dust in the atmosphere.

"The soil is not good - basically volcanic dust - but we can put a lot on it to improve it."

"Ice crystals, and also a fair amount of high-altitude volcanic dust.

I therefore approve of an approach that takes into account the differences in concentration of volcanic dust.

His face was streaked with sweat and smeared with black, volcanic dust.

"We will remove the rest of the volcanic dust and crust from about them," Fairbridge said.

The details would be known when the rest of the volcanic dust had been cleared away and when Beta sun was risen.

"They haven't been exposed to the volcanic dust."

The stream gurgled out of the rain forest, and it was a strange color, milky with volcanic dust.

His skin was covered in volcanic dust.