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Rhomb Porphyry and Chalk Definition


Chalk and Rhomb Porphyry Definition


Definition

Definition
Rhomb-porphyry is a porphyritic igneous rock with abundant wedge or lens shaped anorthoclase or feldspar phenocrysts   
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From Latin term that means purple   
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone   

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   
Fine Grained Rock, Opaque Rock   

Texture >>
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Definition of Rhomb Porphyry and Chalk

The general Rhomb Porphyry and Chalk definition can be stated as: Rhomb-porphyry is a porphyritic igneous rock with abundant wedge or lens shaped anorthoclase or feldspar phenocrysts. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Rhomb Porphyry and Chalk, get to know about Properties of Rhomb Porphyry and Chalk. Get to know more information about Rhomb Porphyry and Chalk origin and discoverer, etymology and class.

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History of Rhomb Porphyry and Chalk

The history of Rhomb Porphyry and Chalk 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.

Rhomb Porphyry and Chalk Origin and Discoverer

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

Etymology of Rhomb Porphyry and Chalk

Along with Rhomb Porphyry and Chalk definition, know more about the etymology of Rhomb Porphyry and Chalk. Etymology of Rhomb Porphyry and Chalk gives information about origin and formation of a particular rock. Know more about Formation of Rhomb Porphyry and Formation of Chalk. The etymology of Rhomb Porphyry is From Latin term that means purple while that of Chalk is From Latin term that means purple. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhomb Porphyry belongs to Igneous Rocks while Chalk belongs to Sedimentary Rocks. The sub-class, group and other categories of Rhomb Porphyry and Chalk are listed below.

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