Phonolite and Anorthosite Definition

Definition of Phonolite and Anorthosite

The general Phonolite and Anorthosite definition can be stated as: Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. On the other hand, Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. Along with definition of Phonolite and Anorthosite, get to know about Properties of Phonolite and Anorthosite. Get to know more information about Phonolite and Anorthosite origin and discoverer, etymology and class.

History of Phonolite and Anorthosite

The history of Phonolite and Anorthosite 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.

Phonolite and Anorthosite Origin and Discoverer

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

Etymology of Phonolite and Anorthosite

Along with Phonolite and Anorthosite definition, know more about the etymology of Phonolite and Anorthosite. Etymology of Phonolite and Anorthosite gives information about origin and formation of a particular rock. Know more about Formation of Phonolite and Formation of Anorthosite. The etymology of Phonolite is From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit while that of Anorthosite is From the Greek meaning sounding stone because of the metallic sound it produces if an unfractured plate is hit. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Phonolite and Anorthosite belong to Igneous Rocks. The sub-class, group and other categories of Phonolite and Anorthosite are listed below.

For Phonolite,

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

For Anorthosite,

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