Red sandstone, close-up. This quartzose (quartz-containing) sand, cemented by clay and silica, settled in sedimentary basins during the Permian (260 m

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Red sandstone, close-up. This quartzose (quartz-containing) sand, cemented by clay and silica, settled in sedimentary basins during the Permian (260 million year ago). Iron oxide produces the reddish colour. This rock is used as a construction stone. This specimen is part of the Geoscope geological park, located between Les Monts-Vert and Albaret-Sainte-Marie, central France.

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Size: 5173px × 3449px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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