Ijolite and Andesite Definition

Definition of Ijolite and Andesite

The general Ijolite and Andesite 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, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Ijolite and Andesite, get to know about Properties of Ijolite and Andesite. Get to know more information about Ijolite and Andesite origin and discoverer, etymology and class.

History of Ijolite and Andesite

The history of Ijolite and Andesite 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 Andesite Origin and Discoverer

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

Etymology of Ijolite and Andesite

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

For Ijolite,

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

For Andesite,

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