o·o·lite (   -l t ) also o·o·lith (-l th)n. 1. A small round calcareous grain found, for example, in limestones. 2. Rock, usually limestone, composed of oolites. o o·litic (-ltk) adj. |
oolith [ˈəʊəˌlɪθ]
n
(Earth Sciences / Geological Science) any of the tiny spherical grains of sedimentary rock of which oolite is composed
| oolith (-lt) 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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