On drying, a white crust remains on the leaf surface.

"Like snow-mice we will be, our pads whispering on the white crust."

If your powder grows a white crust or starts to crumble before that time, chuck it.

Flash was off a little ways, touching the white crust on the walls.

With his arms he smoothed the sand; it stuck to the blood in a white crust.

While white crusts can be caused by hard water, they are more commonly a sign of overfertilization.

The tide continued to go in and out under its white crust, leaving the pier surrounded by ice.

Chris pointed to the white crust on the vats around them.

It was a dry snow, and the white crust compressed beneath our feet with a low crunching noise.

With a white crust of snow, it can seem as if angels visited.