Phonolite and Dunite Definition

Definition of Phonolite and Dunite

The general Phonolite and Dunite 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, Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Along with definition of Phonolite and Dunite, get to know about Properties of Phonolite and Dunite. Get to know more information about Phonolite and Dunite origin and discoverer, etymology and class.

History of Phonolite and Dunite

The history of Phonolite and Dunite 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 Dunite Origin and Discoverer

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

Etymology of Phonolite and Dunite

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

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