Irridescent mineral oxide layer caused by weathering on a piece of Ordovician shale at Abereiddy, West Wales

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Photo credit: © SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: abereiddy, irridescence, irridescent, layer, llanvirn, mineral, ordovician, oxide, product, shales, weathering