Coquina and Dacite Definition

Definition of Coquina and Dacite

The general Coquina and Dacite definition can be stated as: 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. On the other hand, Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Along with definition of Coquina and Dacite, get to know about Properties of Coquina and Dacite. Get to know more information about Coquina and Dacite origin and discoverer, etymology and class.

History of Coquina and Dacite

The history of Coquina and Dacite 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.

Coquina and Dacite Origin and Discoverer

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

Etymology of Coquina and Dacite

Along with Coquina and Dacite definition, know more about the etymology of Coquina and Dacite. Etymology of Coquina and Dacite gives information about origin and formation of a particular rock. Know more about Formation of Coquina and Formation of Dacite. The etymology of Coquina is From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century) while that of Dacite is From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Coquina belongs to Sedimentary Rocks while Dacite belongs to Igneous Rocks. The sub-class, group and other categories of Coquina and Dacite are listed below.

For Coquina,

• Sub-class: Durable Rock and Soft Rock
• Group:
• Other Categories: Coarse grained rock and Opaque rock

For Dacite,

• Sub-class: Durable Rock and Soft Rock
• Group: Volcanic
• Other Categories: Fine grained rock, Medium grained rock and Opaque rock