Home
Compare Rocks


Pseudotachylite and Pegmatite Definition


Pegmatite and Pseudotachylite Definition


Definition

Definition
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.   
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals   

History
  
  

Origin
USA   
Unknown   

Discoverer
Unknown   
R. J. Hauy   

Etymology
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.   
From Greek pegma, pegmat which means- thing joined together + -ite   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

Other Categories
Fine Grained Rock, Opaque Rock   
Coarse Grained Rock, Opaque Rock   

Texture >>
<< Summary

Definition of Pseudotachylite and Pegmatite

The general Pseudotachylite and Pegmatite definition can be stated as: Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Pseudotachylite and Pegmatite, get to know about Properties of Pseudotachylite and Pegmatite. Get to know more information about Pseudotachylite and Pegmatite origin and discoverer, etymology and class.

Compare Metamorphic Rocks

History of Pseudotachylite and Pegmatite

The history of Pseudotachylite and Pegmatite 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.

Pseudotachylite and Pegmatite Origin and Discoverer

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

Etymology of Pseudotachylite and Pegmatite

Along with Pseudotachylite and Pegmatite definition, know more about the etymology of Pseudotachylite and Pegmatite. Etymology of Pseudotachylite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Pseudotachylite and Formation of Pegmatite. The etymology of Pseudotachylite is From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults. while that of Pegmatite is From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Pseudotachylite belongs to Metamorphic Rocks while Pegmatite belongs to Igneous Rocks. The sub-class, group and other categories of Pseudotachylite and Pegmatite are listed below.

For Pseudotachylite,

For Pegmatite,

Metamorphic Rocks

Metamorphic Rocks

» More Metamorphic Rocks

Compare Metamorphic Rocks

» More Compare Metamorphic Rocks