Overview

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Coquina is an incompletely consolidated sedimentary rock. Coquina was formed in association with marine reefs and is a variety of coral rag, technically a subset of limestone. Coquina is mainly composed of mineral calcite, often including some phosphate, in the form of seashells or coral. It is found in surface exposures along the east coast of Florida from St. Johns County to Palm Beach County. It may occur up to 20 miles inland from the coast in the sub-surface. It is found as far north as Fort Fisher, North Carolina. It has also been formed in the South Island of New Zealand, where it outcrops in a disused quarry near Oamaru. The Oligocene deposits here are composed primarily of very well preserved brachiopod shells, in a matrix of brachiopod, echinoid, and bryozoan detritus and foraminifera.

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