Phonolite and Norite Definition

Definition of Phonolite and Norite

The general Phonolite and Norite 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, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Phonolite and Norite, get to know about Properties of Phonolite and Norite. Get to know more information about Phonolite and Norite origin and discoverer, etymology and class.

History of Phonolite and Norite

The history of Phonolite and Norite 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 Norite Origin and Discoverer

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

Etymology of Phonolite and Norite

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

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock