Phonolite and Diorite Definition

Definition of Phonolite and Diorite

The general Phonolite and Diorite 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, Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene. Along with definition of Phonolite and Diorite, get to know about Properties of Phonolite and Diorite. Get to know more information about Phonolite and Diorite origin and discoverer, etymology and class.

History of Phonolite and Diorite

The history of Phonolite and Diorite 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 Diorite Origin and Discoverer

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

Etymology of Phonolite and Diorite

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

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