Oolith meaning

ōə-līt
A small, round grain consisting of concentric layers of calcium carbonate, silica, or dolomite that have precipitated around a shell fragment, sand grain, pellet of alga, or other central object.
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A small, round grain consisting of calcium carbonate, silica, or dolomite. Ooliths have concentric layers that form around a nucleus, such as a shell fragment, a sand grain, or a pellet of alga. They typically have diameters of 0.25 to 2 mm. Ooliths usually form by inorganic precipitation.
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Origin of oolith

  • oo– (since ooliths resemble fish roe in texture and appearance) –lith

    From American Heritage Dictionary of the English Language, 5th Edition