Phonolite and Rhyodacite Definition

Definition of Phonolite and Rhyodacite

The general Phonolite and Rhyodacite 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, Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite. Along with definition of Phonolite and Rhyodacite, get to know about Properties of Phonolite and Rhyodacite. Get to know more information about Phonolite and Rhyodacite origin and discoverer, etymology and class.

History of Phonolite and Rhyodacite

The history of Phonolite and Rhyodacite 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 Rhyodacite Origin and Discoverer

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

Etymology of Phonolite and Rhyodacite

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

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