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Relating to ooliths.

Modern ooids from a beach on Joulter Cays, The Bahamas, with 0.5 mm scale

Relating to ooliths.

Ooids on the surface of a limestone; Carmel Formation (Middle Jurassic) of southern Utah

Relating to ooliths.

Thin-section of calcitic ooids from an oolite within the Carmel Formation (Middle Jurassic) of southern Utah