Granite and Gneiss Definition

Definition of Granite and Gneiss

The general Granite and Gneiss definition can be stated as: Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone. On the other hand, 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. Along with definition of Granite and Gneiss, get to know about Properties of Granite and Gneiss. Get to know more information about Granite and Gneiss origin and discoverer, etymology and class.

History of Granite and Gneiss

The history of Granite and Gneiss 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.

Granite and Gneiss Origin and Discoverer

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

Etymology of Granite and Gneiss

Along with Granite and Gneiss definition, know more about the etymology of Granite and Gneiss. Etymology of Granite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Granite and Formation of Gneiss. The etymology of Granite is From Italian granito, which means grained rock, from grano grain, and from Latin granum while that of Gneiss is From Italian granito, which means grained rock, from grano grain, and from Latin granum. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Granite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Granite and Gneiss are listed below.

For Granite,

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

For Gneiss,

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