pulverulent
Definitions
Consisting of, covered with, or resembling dust or powder.
Easily crumbled into dust or powder.
Examples
The geologist examined the pulverulent soil, which crumbled into fine dust at the slightest touch.
After the explosion, the air was thick with a pulverulent residue that coated every surface in the room.
The dry, pulverulent texture of the ancient parchment made it extremely fragile to handle.