Public domain photos

The image shows a close up of a piece of rock on a black surface, which appears to be a sponge. The sponge is a light brown color and has a rough texture. It is slightly raised from the surface, giving it a 3D effect.

The image shows a close up of a piece of rock on a black surface, which appears to be a sponge. The sponge is a light brown color and has a rough texture. It is slightly raised from the surface, giving it a 3D effect.Open in library