Its stark whiteness was achieved by bleaching the garment in the sun for many days, and then working finely powdered chalk through it.

In field sports, including grass tennis courts, powdered chalk was used to mark the boundary lines of the playing field or court.

They performed a series of drilling tests to determine the exact location of the hull, then marked the perimeter with powdered chalk.

Loose, powdered chalk may be used as a hand drying agent while climbing.

Curved areas can be outlined with powdered chalk.

Of course, there's no way to prove on film that this isn't powdered chalk.

Gavin looked into the arena, where attendants were marking a circle with a material like powdered chalk.

Soon he was working with flour and powdered chalk, sometimes using fans to disperse these materials in regular waves across the floor.

They were marking out the limits with powdered chalk, for the surveyors to follow with lines and stakes.

Climbing requires a minimum of equipment: climbing shoes and some powdered chalk to keep hands dry.