Gneiss and Eclogite Definition

Definition of Gneiss and Eclogite

The general Gneiss and Eclogite 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, Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature. Along with definition of Gneiss and Eclogite, get to know about Properties of Gneiss and Eclogite. Get to know more information about Gneiss and Eclogite origin and discoverer, etymology and class.

History of Gneiss and Eclogite

The history of Gneiss and Eclogite 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 Eclogite Origin and Discoverer

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

Etymology of Gneiss and Eclogite

Along with Gneiss and Eclogite definition, know more about the etymology of Gneiss and Eclogite. Etymology of Gneiss and Eclogite gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Eclogite. The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Eclogite 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 and Eclogite belong to Metamorphic Rocks. The sub-class, group and other categories of Gneiss and Eclogite are listed below.

For Gneiss,

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

For Eclogite,

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