Gneiss and Diorite Definition

Definition of Gneiss and Diorite

The general Gneiss and Diorite 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, Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene. Along with definition of Gneiss and Diorite, get to know about Properties of Gneiss and Diorite. Get to know more information about Gneiss and Diorite origin and discoverer, etymology and class.

History of Gneiss and Diorite

The history of Gneiss and Diorite 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 Diorite Origin and Discoverer

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

Etymology of Gneiss and Diorite

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

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