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Nephelinite
Nephelinite

Picrite
Picrite



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Nephelinite
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Picrite

Nephelinite and Picrite Definition

1 Definition
1.1 Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine
1.2 History
1.2.1 Origin
Brazil
Hawaii Islands
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
from French néphéline, from Greek nephelē
From Greek pikros bitter + -ite, 19th century
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Plutonic
Volcanic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Nephelinite and Picrite

The general Nephelinite and Picrite 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, Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. Along with definition of Nephelinite and Picrite, get to know about Properties of Nephelinite and Picrite. Get to know more information about Nephelinite and Picrite origin and discoverer, etymology and class.

History of Nephelinite and Picrite

The history of Nephelinite and Picrite 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 Picrite Origin and Discoverer

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

Etymology of Nephelinite and Picrite

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

For Nephelinite,

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

For Picrite,

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