Gneiss and Marble Definition

Definition of Gneiss and Marble

The general Gneiss and Marble 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, Marble is a non-foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time. Along with definition of Gneiss and Marble, get to know about Properties of Gneiss and Marble. Get to know more information about Gneiss and Marble origin and discoverer, etymology and class.

History of Gneiss and Marble

The history of Gneiss and Marble 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 Marble Origin and Discoverer

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

Etymology of Gneiss and Marble

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

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