Felsite and Ijolite Definition

Definition of Felsite and Ijolite

The general Felsite and Ijolite 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, Ijolite is an intrusive igneous rock which is composed mainly of nepheline and an alkali pyroxene, usually aegirine-augite. Along with definition of Felsite and Ijolite, get to know about Properties of Felsite and Ijolite. Get to know more information about Felsite and Ijolite origin and discoverer, etymology and class.

History of Felsite and Ijolite

The history of Felsite and Ijolite 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 Ijolite Origin and Discoverer

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

Etymology of Felsite and Ijolite

Along with Felsite and Ijolite definition, know more about the etymology of Felsite and Ijolite. Etymology of Felsite and Ijolite gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Ijolite. The etymology of Felsite is From English feldspar and -ite while that of Ijolite 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 and Ijolite belong to Igneous Rocks. The sub-class, group and other categories of Felsite and Ijolite are listed below.

For Felsite,

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

For Ijolite,

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