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Gneiss and Luxullianite Definition


Luxullianite and Gneiss Definition


Definition

Definition
Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks   
Luxullianite is a rare type of granite, known for presence of clusters of radially arranged acicular tourmaline crystals which are enclosed by phenocrysts of orthoclase and quartz in a matrix of quartz, tourmaline, alkali feldspar, brown mica.   

History
  
  

Origin
Unknown   
England   

Discoverer
Unknown   
Unknown   

Etymology
From the Middle High German verb gneist (to spark; so called because the rock glitters)   
From the village of Luxulyan in Cornwall, England, where this variety of granite is found   

Class
Metamorphic Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture >>
<< Summary

Definition of Gneiss and Luxullianite

The general Gneiss and Luxullianite definition can be stated as: Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. On the other hand, Luxullianite is a rare type of granite, known for presence of clusters of radially arranged acicular tourmaline crystals which are enclosed by phenocrysts of orthoclase and quartz in a matrix of quartz, tourmaline, alkali feldspar, brown mica.. Along with definition of Gneiss and Luxullianite, get to know about Properties of Gneiss and Luxullianite. Get to know more information about Gneiss and Luxullianite origin and discoverer, etymology and class.

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History of Gneiss and Luxullianite

The history of Gneiss and Luxullianite 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.

Gneiss and Luxullianite Origin and Discoverer

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

Etymology of Gneiss and Luxullianite

Along with Gneiss and Luxullianite definition, know more about the etymology of Gneiss and Luxullianite. Etymology of Gneiss and Luxullianite gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Luxullianite. The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Luxullianite is From the Middle High German verb gneist (to spark; so called because the rock glitters). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gneiss belongs to Metamorphic Rocks while Luxullianite belongs to Igneous Rocks. The sub-class, group and other categories of Gneiss and Luxullianite are listed below.

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