Ijolite and Felsite Definition

Definition of Ijolite and Felsite

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

History of Ijolite and Felsite

The history of Ijolite and Felsite 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.

Ijolite and Felsite Origin and Discoverer

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

Etymology of Ijolite and Felsite

Along with Ijolite and Felsite definition, know more about the etymology of Ijolite and Felsite. Etymology of Ijolite and Felsite gives information about origin and formation of a particular rock. Know more about Formation of Ijolite and Formation of Felsite. The etymology of Ijolite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone while that of Felsite is From the first syllable of the Finnish words Ii-vaara, Iijoki, &c. commonly used geographical names in Finland, and the Gr. Xiflos, a stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Ijolite and Felsite belong to Igneous Rocks. The sub-class, group and other categories of Ijolite and Felsite are listed below.

For Ijolite,

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

For Felsite,

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