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Websterite and Chalk Definition


Chalk and Websterite Definition


Definition

Definition
Websterite is ultramafic and ultrabasic rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a special type of pyroxenite.   
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers   

History
  
  

Origin
Webster, North Carolina   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From the town of Webster located in North Carolina   
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, Hard Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture >>
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Definition of Websterite and Chalk

The general Websterite and Chalk definition can be stated as: Websterite is ultramafic and ultrabasic rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a special type of pyroxenite.. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Websterite and Chalk, get to know about Properties of Websterite and Chalk. Get to know more information about Websterite and Chalk origin and discoverer, etymology and class.

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History of Websterite and Chalk

The history of Websterite 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.

Websterite and Chalk Origin and Discoverer

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

Etymology of Websterite and Chalk

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

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