See also: Oolith
oolith (plural ooliths)
- (geology) A spherical granule of which oolite is composed, formed by concentric accretion of thin layers of a mineral around a core. Calcium carbonate (limestone) is the most common mineral that forms ooliths, but they may also form from other minerals such as dolomite and silica.
- (rare) Oolite.
Glossary of Geology, 2nd Edition, American Geological Institute