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Coquina and Rapakivi Granite Definition


Rapakivi Granite and Coquina Definition


Definition

Definition
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   
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   

History
  
  

Origin
European Foreland Basins   
Finland, Europe   

Discoverer
Unknown   
Jakob Sederholm   

Etymology
From Concha (Latin)+ Coquina(Spanish) +conch(English)= Couquina (mid 19th century)   
From Finnish Rapakivi which stands for crumbly rock   

Class
Sedimentary Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Soft Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
<< Summary

Definition of Coquina and Rapakivi Granite

The general Coquina and Rapakivi Granite 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, Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Along with definition of Coquina and Rapakivi Granite, get to know about Properties of Coquina and Rapakivi Granite. Get to know more information about Coquina and Rapakivi Granite origin and discoverer, etymology and class.

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History of Coquina and Rapakivi Granite

The history of Coquina and Rapakivi Granite 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 Rapakivi Granite Origin and Discoverer

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

Etymology of Coquina and Rapakivi Granite

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

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