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Ooid facts for kids

Kids Encyclopedia Facts
Ooids on the surface of an oolite limestone. Carmel Formation (Middle Jurassic) of southern Utah
Thin-section of calcitic ooids from an oolite

An ooid is a small rounded sedimentary rock. Like sand grains, ooids have a diameter of 2 mm or less. Larger grains formed the same way as ooids are called pisoids. Rock made of ooids is oolite.

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Ooid Facts for Kids. Kiddle Encyclopedia.