Phonolite and Nepheline Syenite Definition

Definition of Phonolite and Nepheline Syenite

The general Phonolite and Nepheline Syenite 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, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Phonolite and Nepheline Syenite, get to know about Properties of Phonolite and Nepheline Syenite. Get to know more information about Phonolite and Nepheline Syenite origin and discoverer, etymology and class.

History of Phonolite and Nepheline Syenite

The history of Phonolite and Nepheline Syenite 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 Nepheline Syenite Origin and Discoverer

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

Etymology of Phonolite and Nepheline Syenite

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

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