Phonolite and Anthracite Definition

Definition of Phonolite and Anthracite

The general Phonolite and Anthracite 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, Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Along with definition of Phonolite and Anthracite, get to know about Properties of Phonolite and Anthracite. Get to know more information about Phonolite and Anthracite origin and discoverer, etymology and class.

History of Phonolite and Anthracite

The history of Phonolite and Anthracite 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 Anthracite Origin and Discoverer

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

Etymology of Phonolite and Anthracite

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

For Phonolite,

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

For Anthracite,

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