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Websterite and Rapakivi Granite Definition


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

History
  
  

Origin
Webster, North Carolina  
Finland, Europe  

Discoverer
Unknown  
Jakob Sederholm  

Etymology
From the town of Webster located in North Carolina  
From Finnish Rapakivi which stands for crumbly rock  

Class
Igneous Rocks  
Igneous Rocks  

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

Family
  
  

Group
Plutonic  
Plutonic  

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

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Definition of Websterite and Rapakivi Granite

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

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History of Websterite and Rapakivi Granite

The history of Websterite 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.

Websterite and Rapakivi Granite Origin and Discoverer

Websterite 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 Websterite and Rapakivi Granite. In this section, you will know about Websterite and Rapakivi Granite Origin and Discoverer. Origin of Websterite is Webster, North Carolina whereas Origin of Rapakivi Granite is Finland, Europe. It is interesting to know the name of Websterite and Rapakivi Granite discoverer. The Discoverer of Websterite is Unknown and the discoverer of Rapakivi Granite is Jakob Sederholm.

Etymology of Websterite and Rapakivi Granite

Along with Websterite and Rapakivi Granite definition, know more about the etymology of Websterite and Rapakivi Granite. Etymology of Websterite and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Websterite and Formation of Rapakivi Granite. The etymology of Websterite is From the town of Webster located in North Carolina while that of Rapakivi Granite 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 and Rapakivi Granite belong to Igneous Rocks. The sub-class, group and other categories of Websterite and Rapakivi Granite are listed below.

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