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Kenyte and Trondhjemite Definition


Trondhjemite and Kenyte Definition


Definition

Definition
Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix   
Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.   

History
  
  

Origin
Mount Kenya   
Tonale, Italy   

Discoverer
J. W. Gregory   
Unknown   

Etymology
From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900   
Not Available   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
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Definition of Kenyte and Trondhjemite

The general Kenyte and Trondhjemite definition can be stated as: Kenyte is a variety of porphyritic phonolite or trachyte rock with rhomb shaped phenocrysts of anorthoclase with variable olivine and augite in a glassy matrix. On the other hand, Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. Along with definition of Kenyte and Trondhjemite, get to know about Properties of Kenyte and Trondhjemite. Get to know more information about Kenyte and Trondhjemite origin and discoverer, etymology and class.

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History of Kenyte and Trondhjemite

The history of Kenyte and Trondhjemite 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.

Kenyte and Trondhjemite Origin and Discoverer

Kenyte and Trondhjemite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Kenyte and Trondhjemite. In this section, you will know about Kenyte and Trondhjemite Origin and Discoverer. Origin of Kenyte is Mount Kenya whereas Origin of Trondhjemite is Tonale, Italy. It is interesting to know the name of Kenyte and Trondhjemite discoverer. The Discoverer of Kenyte is J. W. Gregory and the discoverer of Trondhjemite is Unknown.

Etymology of Kenyte and Trondhjemite

Along with Kenyte and Trondhjemite definition, know more about the etymology of Kenyte and Trondhjemite. Etymology of Kenyte and Trondhjemite gives information about origin and formation of a particular rock. Know more about Formation of Kenyte and Formation of Trondhjemite. The etymology of Kenyte is From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900 while that of Trondhjemite is From the mountain ranges- Mount Kenya and is named by J. W. Gregory in 1900. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Kenyte and Trondhjemite belong to Igneous Rocks. The sub-class, group and other categories of Kenyte and Trondhjemite are listed below.

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