Exodus 16:14

And when it had covered the face of the earth, it appeared, in the wilderness, small and as if crushed with a pestle, similar to hoar-frost on the ground

Other versions

King James Version

And when the dew that lay was gone up, behold, upon the face of the wilderness there lay a small round thing, as small as the hoar frost on the ground.

English Standard Version

And when the dew had gone up, there was on the face of the wilderness a fine, flake-like thing, fine as frost on the ground.

New International Version

When the dew was gone, thin flakes like frost on the ground appeared on the desert floor.