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Rapakivi Granite and Ignimbrite Definition


Ignimbrite and Rapakivi Granite Definition


Definition

Definition
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   
Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows   

History
  
  

Origin
Finland, Europe   
New Zealand   

Discoverer
Jakob Sederholm   
Patrick Marshall   

Etymology
From Finnish Rapakivi which stands for crumbly rock   
From Latin ignis fire + imber, imbr- shower of rain, storm cloud + -ite   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
<< Summary

Definition of Rapakivi Granite and Ignimbrite

The general Rapakivi Granite and Ignimbrite definition can be stated as: Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. On the other hand, Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows. Along with definition of Rapakivi Granite and Ignimbrite, get to know about Properties of Rapakivi Granite and Ignimbrite. Get to know more information about Rapakivi Granite and Ignimbrite origin and discoverer, etymology and class.

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History of Rapakivi Granite and Ignimbrite

The history of Rapakivi Granite and Ignimbrite 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.

Rapakivi Granite and Ignimbrite Origin and Discoverer

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

Etymology of Rapakivi Granite and Ignimbrite

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

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