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Which rock is an organic sedimentary rock coquina rock salt sandstone or conglomerate?

April 26, 2017conglomerate coquina organic rock Salt sandstone sedimentary

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Which rock is an organic sedimentary rock coquina rock salt sandstone or conglomerate?

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Let’s see–a rock composed of rounded pebbles cemented together is conglomerate; cemented sand grains forms sandstone; rock salt forms from evaporating solutions–that leaves coquina, a rock formed from the shells of marine organisms which definitely fits the definition of organic. Must be coquina.