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:
Boudin vein. Roland Gotthard own photograph copyright Roland Gotthard free use with citation en Adrignola CommonsHelper Rolinator en Brett Davis Original upload log page en Boudinvein Rolinator bytes no Davis own photograph copyright Brett Davis free use with citation Quartz Boudinage Rocks with objects for scale Images