Public domain photos

The image shows a box of rocks sitting on top of a table, with a scale and a paper with a QR code beside it. The box contains a few stones, and the scale is likely used to measure the size of the rocks.

The image shows a box of rocks sitting on top of a table, with a scale and a paper with a QR code beside it. The box contains a few stones, and the scale is likely used to measure the size of the rocks.Open in library