Nephelinite and Coquina Definition

Definition of Nephelinite and Coquina

The general Nephelinite and Coquina 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, Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates. Along with definition of Nephelinite and Coquina, get to know about Properties of Nephelinite and Coquina. Get to know more information about Nephelinite and Coquina origin and discoverer, etymology and class.

History of Nephelinite and Coquina

The history of Nephelinite and Coquina 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 Coquina Origin and Discoverer

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

Etymology of Nephelinite and Coquina

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

For Nephelinite,

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

For Coquina,

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