Gneiss and Breccia Definition

Definition of Gneiss and Breccia

The general Gneiss and Breccia 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, Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material. Along with definition of Gneiss and Breccia, get to know about Properties of Gneiss and Breccia. Get to know more information about Gneiss and Breccia origin and discoverer, etymology and class.

History of Gneiss and Breccia

The history of Gneiss and Breccia 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 Breccia Origin and Discoverer

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

Etymology of Gneiss and Breccia

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

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