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Litchfieldite and Comendite Definition


Comendite and Litchfieldite Definition


Definition

Definition
Litchfieldite is a rare igneous rock which is coarse-grained, foliated and a variety of nepheline syenite, sometimes also called as nepheline syenite gneiss or gneissic nepeheline syenite   
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite   

History
  
  

Origin
USA   
Italy   

Discoverer
Bayley   
Unknown   

Etymology
From its occurrence at Litchfield, Maine, USA   
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture >>
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Definition of Litchfieldite and Comendite

The general Litchfieldite and Comendite definition can be stated as: Litchfieldite is a rare igneous rock which is coarse-grained, foliated and a variety of nepheline syenite, sometimes also called as nepheline syenite gneiss or gneissic nepeheline syenite. On the other hand, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Litchfieldite and Comendite, get to know about Properties of Litchfieldite and Comendite. Get to know more information about Litchfieldite and Comendite origin and discoverer, etymology and class.

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History of Litchfieldite and Comendite

The history of Litchfieldite and Comendite 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.

Litchfieldite and Comendite Origin and Discoverer

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

Etymology of Litchfieldite and Comendite

Along with Litchfieldite and Comendite definition, know more about the etymology of Litchfieldite and Comendite. Etymology of Litchfieldite and Comendite gives information about origin and formation of a particular rock. Know more about Formation of Litchfieldite and Formation of Comendite. The etymology of Litchfieldite is From its occurrence at Litchfield, Maine, USA while that of Comendite is From its occurrence at Litchfield, Maine, USA. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Litchfieldite and Comendite belong to Igneous Rocks. The sub-class, group and other categories of Litchfieldite and Comendite are listed below.

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