Calcite sample, close-up. This is oolitic calcite. Calcite is a general term for calcium carbonate minerals. Limestone is mostly calcite. An ooid is a

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Calcite sample, close-up. This is oolitic calcite. Calcite is a general term for calcium carbonate minerals. Limestone is mostly calcite. An ooid is a nearly perfectly circular calcite deposition formed from sediments on the seabed under the action of moving waters in a shallow sea. Rocks consisting of compressed ooids are called oolites. This sample is from the Jurassic calcite sediments of central Switzerland.

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Photo credit: © MICHAEL SZOENYI/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alpine, alps, calcite, calcium, carbonate, close-, earth, europe, european, geological, geology, jurassic, ooid, ooids, oolite, oolitic, rock, rocks, sample, science, sediment, sedimentary, sedimentation, swiss, switzerland