Anthracite and Nephelinite Definition

Definition of Anthracite and Nephelinite

The general Anthracite and Nephelinite definition can be stated as: Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. On the other hand, Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Along with definition of Anthracite and Nephelinite, get to know about Properties of Anthracite and Nephelinite. Get to know more information about Anthracite and Nephelinite origin and discoverer, etymology and class.

History of Anthracite and Nephelinite

The history of Anthracite and Nephelinite 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.

Anthracite and Nephelinite Origin and Discoverer

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

Etymology of Anthracite and Nephelinite

Along with Anthracite and Nephelinite definition, know more about the etymology of Anthracite and Nephelinite. Etymology of Anthracite and Nephelinite gives information about origin and formation of a particular rock. Know more about Formation of Anthracite and Formation of Nephelinite. The etymology of Anthracite is From Greek anthrakites, from anthrax, anthrak meaning coal while that of Nephelinite is From Greek anthrakites, from anthrax, anthrak meaning coal. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anthracite belongs to Metamorphic Rocks while Nephelinite belongs to Igneous Rocks. The sub-class, group and other categories of Anthracite and Nephelinite are listed below.

For Anthracite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Nephelinite,

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