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Gneiss

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Gneiss and Blueschist Definition

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1 Definition
1.1 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
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature
1.2 History
1.2.1 Origin
Unknown
USA
1.2.2 Discoverer
Unknown
Edgar Bailey
1.3 Etymology
From the Middle High German verb gneist (to spark; so called because the rock glitters)
From French schiste, Greek skhistos i.e. split
1.4 Class
Metamorphic Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock

Definition of Gneiss and Blueschist

The general Gneiss and Blueschist 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, Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature. Along with definition of Gneiss and Blueschist, get to know about Properties of Gneiss and Blueschist. Get to know more information about Gneiss and Blueschist origin and discoverer, etymology and class.

History of Gneiss and Blueschist

The history of Gneiss and Blueschist 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 Blueschist Origin and Discoverer

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

Etymology of Gneiss and Blueschist

Along with Gneiss and Blueschist definition, know more about the etymology of Gneiss and Blueschist. Etymology of Gneiss and Blueschist gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Blueschist. The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Blueschist 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 and Blueschist belong to Metamorphic Rocks. The sub-class, group and other categories of Gneiss and Blueschist are listed below.

For Gneiss,

  • Sub-class: Durable Rock and Hard Rock
  • Group: Not applicable
  • Other Categories: Coarse grained rock, Medium grained rock and Opaque rock

For Blueschist,

  • Sub-class: Durable Rock and Medium Hardness Rock
  • Group: Not applicable
  • Other Categories: Fine grained rock, Medium grained rock and Opaque rock