Andesite and Phonolite Definition

Definition of Andesite and Phonolite

The general Andesite and Phonolite definition can be stated as: Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. On the other hand, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Andesite and Phonolite, get to know about Properties of Andesite and Phonolite. Get to know more information about Andesite and Phonolite origin and discoverer, etymology and class.

History of Andesite and Phonolite

The history of Andesite and Phonolite 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.

Andesite and Phonolite Origin and Discoverer

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

Etymology of Andesite and Phonolite

Along with Andesite and Phonolite definition, know more about the etymology of Andesite and Phonolite. Etymology of Andesite and Phonolite gives information about origin and formation of a particular rock. Know more about Formation of Andesite and Formation of Phonolite. The etymology of Andesite is From Andes mountains, where it is found in abundance while that of Phonolite is From Andes mountains, where it is found in abundance. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Andesite and Phonolite belong to Igneous Rocks. The sub-class, group and other categories of Andesite and Phonolite are listed below.

For Andesite,

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

For Phonolite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock