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Nephelinite
Nephelinite

Rhyolite
Rhyolite



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Nephelinite
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Rhyolite

Nephelinite and Rhyolite Definition

Definition

Definition

Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
Rhyolite is a fine-grained igneous rock which is rich in silica

History

Origin

Brazil
North America

Discoverer

Unknown
Ferdinand von Richthofen

Etymology

from French néphéline, from Greek nephelē
From German Rhyolit, from Greek rhuax lava stream + lithos stone

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Hard Rock

Family

Group

Plutonic
Volcanic

Other Categories

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

Definition of Nephelinite and Rhyolite

The general Nephelinite and Rhyolite definition can be stated as: Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. On the other hand, Rhyolite is a fine-grained igneous rock which is rich in silica. Along with definition of Nephelinite and Rhyolite, get to know about Properties of Nephelinite and Rhyolite. Get to know more information about Nephelinite and Rhyolite origin and discoverer, etymology and class.

History of Nephelinite and Rhyolite

The history of Nephelinite and Rhyolite 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.

Nephelinite and Rhyolite Origin and Discoverer

Nephelinite and Rhyolite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Nephelinite and Rhyolite. In this section, you will know about Nephelinite and Rhyolite Origin and Discoverer. Origin of Nephelinite is Brazil whereas Origin of Rhyolite is North America. It is interesting to know the name of Nephelinite and Rhyolite discoverer. The Discoverer of Nephelinite is Unknown and the discoverer of Rhyolite is Ferdinand von Richthofen.

Etymology of Nephelinite and Rhyolite

Along with Nephelinite and Rhyolite definition, know more about the etymology of Nephelinite and Rhyolite. Etymology of Nephelinite and Rhyolite gives information about origin and formation of a particular rock. Know more about Formation of Nephelinite and Formation of Rhyolite. The etymology of Nephelinite is from French néphéline, from Greek nephelē while that of Rhyolite is from French néphéline, from Greek nephelē. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Nephelinite and Rhyolite belong to Igneous Rocks. The sub-class, group and other categories of Nephelinite and Rhyolite are listed below.

For Nephelinite,

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

For Rhyolite,

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