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Oolite
Sedimentary rock formed from ooids / From Wikipedia, the free encyclopedia
For the video game, see Oolite (video game).
Oolite or oölite (from Ancient Greek ᾠόν (ōión) 'egg stone')[1] is a sedimentary rock formed from ooids, spherical grains composed of concentric layers.[2] Strictly, oolites consist of ooids of diameter 0.25–2 millimetres; rocks composed of ooids larger than 2 mm are called pisolites. The term oolith can refer to oolite or individual ooids.
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