Phonolite and Tachylite Definition

Definition of Phonolite and Tachylite

The general Phonolite and Tachylite 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, Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. Along with definition of Phonolite and Tachylite, get to know about Properties of Phonolite and Tachylite. Get to know more information about Phonolite and Tachylite origin and discoverer, etymology and class.

History of Phonolite and Tachylite

The history of Phonolite and Tachylite 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 Tachylite Origin and Discoverer

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

Etymology of Phonolite and Tachylite

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

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