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Felsite
Felsite

Pseudotachylite
Pseudotachylite



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Felsite
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Pseudotachylite

Felsite and Pseudotachylite Definition

Definition

Definition

Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.

History

Origin

-
USA

Discoverer

Unknown
Unknown

Etymology

From English feldspar and -ite
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
-

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Felsite and Pseudotachylite

The general Felsite and Pseudotachylite definition can be stated as: Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. On the other hand, Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. Along with definition of Felsite and Pseudotachylite, get to know about Properties of Felsite and Pseudotachylite. Get to know more information about Felsite and Pseudotachylite origin and discoverer, etymology and class.

History of Felsite and Pseudotachylite

The history of Felsite and Pseudotachylite 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.

Felsite and Pseudotachylite Origin and Discoverer

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

Etymology of Felsite and Pseudotachylite

Along with Felsite and Pseudotachylite definition, know more about the etymology of Felsite and Pseudotachylite. Etymology of Felsite and Pseudotachylite gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Pseudotachylite. The etymology of Felsite is From English feldspar and -ite while that of Pseudotachylite is From English feldspar and -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Felsite belongs to Igneous Rocks while Pseudotachylite belongs to Metamorphic Rocks. The sub-class, group and other categories of Felsite and Pseudotachylite are listed below.

For Felsite,

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

For Pseudotachylite,

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