Essexite  and Gneiss Definition

Definition of Essexite  and Gneiss

The general Essexite  and Gneiss definition can be stated as: Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. On the other hand, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Essexite  and Gneiss, get to know about Properties of Essexite  and Gneiss. Get to know more information about Essexite  and Gneiss origin and discoverer, etymology and class.

History of Essexite  and Gneiss

The history of Essexite  and Gneiss 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.

Essexite  and Gneiss Origin and Discoverer

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

Etymology of Essexite  and Gneiss

Along with Essexite  and Gneiss definition, know more about the etymology of Essexite  and Gneiss. Etymology of Essexite  and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Essexite  and Formation of Gneiss. The etymology of Essexite  is From the locality in Essex County, Massachusetts,US while that of Gneiss is From the locality in Essex County, Massachusetts,US. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Essexite  belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Essexite  and Gneiss are listed below.

For Essexite ,

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

For Gneiss,

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