pył wulkaniczny

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

I wonder if that was volcanic dust we slept in.

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

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

Probably volcanic dust in the air, he decided, acting almost like smoked glass.

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

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

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

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

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