Rounded pebble bearing artful trace of a fossil gastropod infused with calcite A symbol from prehistory that looks more modern in design. With mm rule

- Image ID: R6EXED

Rounded pebble bearing artful trace of a fossil gastropod infused with calcite A symbol from prehistory that looks more modern in design. With mm rule

Holden Geology / Alamy Stock Photo

Image ID: R6EXED

Location: Langland Bay, Gower, Swansea, Wales