Chert and Coquina Definition

Definition of Chert and Coquina

The general Chert and Coquina definition can be stated as: Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. On the other hand, Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates. Along with definition of Chert and Coquina, get to know about Properties of Chert and Coquina. Get to know more information about Chert and Coquina origin and discoverer, etymology and class.

History of Chert and Coquina

The history of Chert and Coquina gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Chert and Coquina Origin and Discoverer

Chert and Coquina definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Chert and Coquina. In this section, you will know about Chert and Coquina Origin and Discoverer. Origin of Chert is Unknown whereas Origin of Coquina is European Foreland Basins. It is interesting to know the name of Chert and Coquina discoverer. The discoverer of Chert and Coquina are Unknown.

Etymology of Chert and Coquina

Along with Chert and Coquina definition, know more about the etymology of Chert and Coquina. Etymology of Chert and Coquina gives information about origin and formation of a particular rock. Know more about Formation of Chert and Formation of Coquina. The etymology of Chert is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use while that of Coquina is From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chert and Coquina belong to Sedimentary Rocks. The sub-class, group and other categories of Chert and Coquina are listed below.

For Chert,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Coquina,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock and Opaque rock