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Variolite
Variolite

Pegmatite
Pegmatite



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Variolite and Pegmatite Definition

Definition

Definition

Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals

History

Origin

France
-

Discoverer

Unknown
R. J. Hauy

Etymology

From Latin varius, speckled, variegated
From Greek pegma, pegmat which means- thing joined together + -ite

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
Plutonic

Other Categories

Opaque Rock
Coarse Grained Rock, Opaque Rock

Definition of Variolite and Pegmatite

The general Variolite and Pegmatite definition can be stated as: Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Variolite and Pegmatite, get to know about Properties of Variolite and Pegmatite. Get to know more information about Variolite and Pegmatite origin and discoverer, etymology and class.

History of Variolite and Pegmatite

The history of Variolite 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.

Variolite and Pegmatite Origin and Discoverer

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

Etymology of Variolite and Pegmatite

Along with Variolite and Pegmatite definition, know more about the etymology of Variolite and Pegmatite. Etymology of Variolite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Variolite and Formation of Pegmatite. The etymology of Variolite is From Latin varius, speckled, variegated while that of Pegmatite is From Latin varius, speckled, variegated. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Variolite and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Variolite and Pegmatite are listed below.

For Variolite,

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

For Pegmatite,

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