Phonolite and Gritstone Definition

Definition of Phonolite and Gritstone

The general Phonolite and Gritstone 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, Gritstone or grit is a hard, coarse-grained, siliceous sandstone. Along with definition of Phonolite and Gritstone, get to know about Properties of Phonolite and Gritstone. Get to know more information about Phonolite and Gritstone origin and discoverer, etymology and class.

History of Phonolite and Gritstone

The history of Phonolite and Gritstone 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 Gritstone Origin and Discoverer

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

Etymology of Phonolite and Gritstone

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

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