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Schist

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Schist and Comendite Definition

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1 Definition
1.1 Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite
1.2 History
1.2.1 Origin
Unknown
Italy
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From French schiste, Greek skhistos i.e. split
Comendite derives its name from the area of Le Commende on San Pietro Island in Italy
1.4 Class
Metamorphic Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Volcanic
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Medium Grained Rock, Opaque Rock

Definition of Schist and Comendite

The general Schist and Comendite definition can be stated as: Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. On the other hand, Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Along with definition of Schist and Comendite, get to know about Properties of Schist and Comendite. Get to know more information about Schist and Comendite origin and discoverer, etymology and class.

History of Schist and Comendite

The history of Schist 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.

Schist and Comendite Origin and Discoverer

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

Etymology of Schist and Comendite

Along with Schist and Comendite definition, know more about the etymology of Schist and Comendite. Etymology of Schist and Comendite gives information about origin and formation of a particular rock. Know more about Formation of Schist and Formation of Comendite. The etymology of Schist is From French schiste, Greek skhistos i.e. split while that of Comendite is From French schiste, Greek skhistos i.e. split. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Schist belongs to Metamorphic Rocks while Comendite belongs to Igneous Rocks. The sub-class, group and other categories of Schist and Comendite are listed below.

For Schist,

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

For Comendite,

  • Sub-class: Durable Rock and Hard Rock
  • Group: Volcanic
  • Other Categories: Medium grained rock and Opaque rock