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:
Stylolite oehrlikalk a. Irregular stylolite planes in thin section of packstone clasts are microorganisms Cross polarized light magnification scale see scalebar Oehrlikalk formation of the Axen nappe Wellenberg Switzerland Own Woudloper See image stylolite oehrlikalk for the same image in normal polarized light Limestone in thin