This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Agate banded pix. Banded agate The specimen is one inch cm wide Picture made without camera by laying the carving on flat bed scanner Released to the public domain by Adrian Pingstone in May de Achat en Agate es gata ja pl Agat pt gata ru sk Acht sl Ahat Arpingstone Agate Contour lines in mineraloids