Greywacke and Coquina Definition

Definition of Greywacke and Coquina

The general Greywacke and Coquina definition can be stated as: Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. 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 Greywacke and Coquina, get to know about Properties of Greywacke and Coquina. Get to know more information about Greywacke and Coquina origin and discoverer, etymology and class.

History of Greywacke and Coquina

The history of Greywacke 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.

Greywacke and Coquina Origin and Discoverer

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

Etymology of Greywacke and Coquina

Along with Greywacke and Coquina definition, know more about the etymology of Greywacke and Coquina. Etymology of Greywacke and Coquina gives information about origin and formation of a particular rock. Know more about Formation of Greywacke and Formation of Coquina. The etymology of Greywacke is From German Grauwacke, from grau grey + wacke while that of Coquina is From German Grauwacke, from grau grey + wacke. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Greywacke and Coquina belong to Sedimentary Rocks. The sub-class, group and other categories of Greywacke and Coquina are listed below.

For Greywacke,

• 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