Gneiss and Gabbro Definition

Definition of Gneiss and Gabbro

The general Gneiss and Gabbro 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, Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt. Along with definition of Gneiss and Gabbro, get to know about Properties of Gneiss and Gabbro. Get to know more information about Gneiss and Gabbro origin and discoverer, etymology and class.

History of Gneiss and Gabbro

The history of Gneiss and Gabbro 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 Gabbro Origin and Discoverer

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

Etymology of Gneiss and Gabbro

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

For Gneiss,

• Sub-class: Durable Rock and Hard Rock
• Group:
• Other Categories: Coarse grained rock, Medium grained rock and Opaque rock

For Gabbro,

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