Home
Compare Rocks


Rhyodacite and Coquina Definition


Coquina and Rhyodacite Definition


Definition

Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite   
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   

History
  
  

Origin
USA   
European Foreland Basins   

Discoverer
Unknown   
Unknown   

Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite   
From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)   

Class
Igneous Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Coarse Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Rhyodacite and Coquina

The general Rhyodacite and Coquina definition can be stated as: Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. 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 Rhyodacite and Coquina, get to know about Properties of Rhyodacite and Coquina. Get to know more information about Rhyodacite and Coquina origin and discoverer, etymology and class.

Compare Igneous Rocks

History of Rhyodacite and Coquina

The history of Rhyodacite 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.

Rhyodacite and Coquina Origin and Discoverer

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

Etymology of Rhyodacite and Coquina

Along with Rhyodacite and Coquina definition, know more about the etymology of Rhyodacite and Coquina. Etymology of Rhyodacite and Coquina gives information about origin and formation of a particular rock. Know more about Formation of Rhyodacite and Formation of Coquina. The etymology of Rhyodacite is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite while that of Coquina is Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyodacite belongs to Igneous Rocks while Coquina belongs to Sedimentary Rocks. The sub-class, group and other categories of Rhyodacite and Coquina are listed below.

For Rhyodacite,

For Coquina,

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks