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Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock
Basaltic Trachyandesite is an extrusive igneous rock which is a type of Basalt rock and is formed by the rapid cooling of basaltic lava exposed at or very near the Earth's surface
From its mineral and compound content and its relation with Basalt and Andesite rock
Durable Rock, Medium Hardness Rock
Fine Grained Rock, Opaque Rock