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Anorthosite and Rapakivi Granite Definition


Rapakivi Granite and Anorthosite Definition


Definition

Definition
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase   
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   

History
  
  

Origin
Unknown   
Finland, Europe   

Discoverer
Unknown   
Jakob Sederholm   

Etymology
From French anorthose plagioclase + -ite1   
From Finnish Rapakivi which stands for crumbly rock   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture >>
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Definition of Anorthosite and Rapakivi Granite

The general Anorthosite and Rapakivi Granite definition can be stated as: Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. 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 Anorthosite and Rapakivi Granite, get to know about Properties of Anorthosite and Rapakivi Granite. Get to know more information about Anorthosite and Rapakivi Granite origin and discoverer, etymology and class.

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History of Anorthosite and Rapakivi Granite

The history of Anorthosite 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.

Anorthosite and Rapakivi Granite Origin and Discoverer

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

Etymology of Anorthosite and Rapakivi Granite

Along with Anorthosite and Rapakivi Granite definition, know more about the etymology of Anorthosite and Rapakivi Granite. Etymology of Anorthosite and Rapakivi Granite gives information about origin and formation of a particular rock. Know more about Formation of Anorthosite and Formation of Rapakivi Granite. The etymology of Anorthosite is From French anorthose plagioclase + -ite1 while that of Rapakivi Granite is From French anorthose plagioclase + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anorthosite and Rapakivi Granite belong to Igneous Rocks. The sub-class, group and other categories of Anorthosite and Rapakivi Granite are listed below.

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For Rapakivi Granite,

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