Phonolite and Hornfels Definition

Definition of Phonolite and Hornfels

The general Phonolite and Hornfels 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, Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Along with definition of Phonolite and Hornfels, get to know about Properties of Phonolite and Hornfels. Get to know more information about Phonolite and Hornfels origin and discoverer, etymology and class.

History of Phonolite and Hornfels

The history of Phonolite and Hornfels 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 Hornfels Origin and Discoverer

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

Etymology of Phonolite and Hornfels

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

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