Gneiss and Anorthosite Definition

Definition of Gneiss and Anorthosite

The general Gneiss and Anorthosite 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, Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. Along with definition of Gneiss and Anorthosite, get to know about Properties of Gneiss and Anorthosite. Get to know more information about Gneiss and Anorthosite origin and discoverer, etymology and class.

History of Gneiss and Anorthosite

The history of Gneiss and Anorthosite 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 Anorthosite Origin and Discoverer

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

Etymology of Gneiss and Anorthosite

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

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