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Tonalite and Argillite Definition


Argillite and Tonalite Definition


Definition

Definition
Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture   
Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate   

History
  
  

Origin
Tonale, Italy   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Tonale Pass, northern Italy, + -ite1   
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite   

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, Fine Grained Rock, Medium Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture >>
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Definition of Tonalite and Argillite

The general Tonalite and Argillite definition can be stated as: Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. On the other hand, Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. Along with definition of Tonalite and Argillite, get to know about Properties of Tonalite and Argillite. Get to know more information about Tonalite and Argillite origin and discoverer, etymology and class.

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History of Tonalite and Argillite

The history of Tonalite and Argillite 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.

Tonalite and Argillite Origin and Discoverer

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

Etymology of Tonalite and Argillite

Along with Tonalite and Argillite definition, know more about the etymology of Tonalite and Argillite. Etymology of Tonalite and Argillite gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Argillite. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Argillite is From Tonale Pass, northern Italy, + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tonalite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks. The sub-class, group and other categories of Tonalite and Argillite are listed below.

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For Argillite,

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