The general Gneiss and Essexite definition can be stated as: 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. On the other hand, Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. Along with definition of Gneiss and Essexite , get to know about Properties of Gneiss and Essexite . Get to know more information about Gneiss and Essexite origin and discoverer, etymology and class.
The history of Gneiss and Essexite 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.
Gneiss and Essexite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Gneiss and Essexite . In this section, you will know about Gneiss and Essexite Origin and Discoverer. Origin of Gneiss is Unknown whereas Origin of Essexite is USA. It is interesting to know the name of Gneiss and Essexite discoverer. The discoverer of Gneiss and Essexite are Unknown.
Along with Gneiss and Essexite definition, know more about the etymology of Gneiss and Essexite . Etymology of Gneiss and Essexite gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Essexite . The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Essexite is From the Middle High German verb gneist (to spark; so called because the rock glitters). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gneiss belongs to Metamorphic Rocks while Essexite belongs to Igneous Rocks. The sub-class, group and other categories of Gneiss and Essexite are listed below.
For Gneiss,
For Essexite ,