Nephelinite and Foidolite Definition

Definition of Nephelinite and Foidolite

The general Nephelinite and Foidolite 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, Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%. Along with definition of Nephelinite and Foidolite, get to know about Properties of Nephelinite and Foidolite. Get to know more information about Nephelinite and Foidolite origin and discoverer, etymology and class.

History of Nephelinite and Foidolite

The history of Nephelinite and Foidolite 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 Foidolite Origin and Discoverer

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

Etymology of Nephelinite and Foidolite

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

For Nephelinite,

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

For Foidolite,

• Sub-class: Durable Rock and Soft Rock
• Group: Plutonic
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock