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Rapakivi Granite
Rapakivi Granite

Felsite
Felsite



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Rapakivi Granite
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Rapakivi Granite and Felsite Definition

1 Definition
1.1 Definition
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase
Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition
1.2 History
1.2.1 Origin
Finland, Europe
Unknown
1.2.2 Discoverer
Jakob Sederholm
Unknown
1.3 Etymology
From Finnish Rapakivi which stands for crumbly rock
From English feldspar and -ite
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Plutonic
Volcanic
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Rapakivi Granite and Felsite

The general Rapakivi Granite and Felsite 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, Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Along with definition of Rapakivi Granite and Felsite, get to know about Properties of Rapakivi Granite and Felsite. Get to know more information about Rapakivi Granite and Felsite origin and discoverer, etymology and class.

History of Rapakivi Granite and Felsite

The history of Rapakivi Granite and Felsite 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 Felsite Origin and Discoverer

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

Etymology of Rapakivi Granite and Felsite

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

For Rapakivi Granite,

  • Sub-class: Durable Rock and Hard Rock
  • Group: Plutonic
  • Other Categories: Coarse grained rock and Opaque rock

For Felsite,

  • Sub-class: Durable Rock and Medium Hardness Rock
  • Group: Volcanic
  • Other Categories: Fine grained rock and Opaque rock
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