Phonolite and Trachyandesite Definition

Definition of Phonolite and Trachyandesite

The general Phonolite and Trachyandesite 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, Trachyandesite is an extrusive igneous rock.. Along with definition of Phonolite and Trachyandesite, get to know about Properties of Phonolite and Trachyandesite. Get to know more information about Phonolite and Trachyandesite origin and discoverer, etymology and class.

History of Phonolite and Trachyandesite

The history of Phonolite and Trachyandesite 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 Trachyandesite Origin and Discoverer

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

Etymology of Phonolite and Trachyandesite

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

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