Felsite and Gneiss Definition

Definition of Felsite and Gneiss

The general Felsite and Gneiss definition can be stated as: Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. 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 Felsite and Gneiss, get to know about Properties of Felsite and Gneiss. Get to know more information about Felsite and Gneiss origin and discoverer, etymology and class.

History of Felsite and Gneiss

The history of Felsite 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.

Felsite and Gneiss Origin and Discoverer

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

Etymology of Felsite and Gneiss

Along with Felsite and Gneiss definition, know more about the etymology of Felsite and Gneiss. Etymology of Felsite and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Gneiss. The etymology of Felsite is From English feldspar and -ite while that of Gneiss is From English feldspar and -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Felsite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Felsite and Gneiss are listed below.

For Felsite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine 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