Gneiss and Norite Definition

Definition of Gneiss and Norite

The general Gneiss and Norite 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, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Gneiss and Norite, get to know about Properties of Gneiss and Norite. Get to know more information about Gneiss and Norite origin and discoverer, etymology and class.

History of Gneiss and Norite

The history of Gneiss and Norite 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 Norite Origin and Discoverer

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

Etymology of Gneiss and Norite

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

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