Felsite and Coal Definition

Definition of Felsite and Coal

The general Felsite and Coal definition can be stated as: Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. On the other hand, Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. Along with definition of Felsite and Coal, get to know about Properties of Felsite and Coal. Get to know more information about Felsite and Coal origin and discoverer, etymology and class.

History of Felsite and Coal

The history of Felsite and Coal 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.

Felsite and Coal Origin and Discoverer

Felsite and Coal definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Felsite and Coal. In this section, you will know about Felsite and Coal Origin and Discoverer. Origin of Felsite is Unknown whereas Origin of Coal is USA. It is interesting to know the name of Felsite and Coal discoverer. The Discoverer of Felsite is Unknown and the discoverer of Coal is John Peter Salley.

Etymology of Felsite and Coal

Along with Felsite and Coal definition, know more about the etymology of Felsite and Coal. Etymology of Felsite and Coal gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Coal. The etymology of Felsite is From English feldspar and -ite while that of Coal is From English feldspar and -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Felsite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks. The sub-class, group and other categories of Felsite and Coal are listed below.

For Felsite,

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

For Coal,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock