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Trachyte , trachyte Fine-grained volcanic rock of the alkaline series of intermediate rocks. Trachyte is the volcanic equivalent of syenite.
trachyte gritty vol… Samphire , sam·phire / ˈsamˌfīr/ • n. 1. (also rock samphire) a European plant (Crithmum maritimum) of the parsley family that grows on rocks and cliffs by the… Unconformity , An unconformity is a widespread surface separating rocks above and below, which represents a gap in the rock record. The gap, or interval of geologic… sea pen , sea pen See ANTHOZOA; and PENNATULACEA. Rock , rock1 / räk/ • n. 1. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underly… Iron Ores , Rocks
Rocks are composed of minerals, which are natural inorganic (nonliving) substances with specific chemical compositions and structures. A rock m…
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