Public domain photos

The image shows a close up of a piece of rock with a black and white pattern on it, which appears to be a photomicrograph. The rock is composed of a variety of colors, including white, black, and brown, and is set against a white background.

The image shows a close up of a piece of rock with a black and white pattern on it, which appears to be a photomicrograph. The rock is composed of a variety of colors, including white, black, and brown, and is set against a white background.Open in library