Anthracite and Andesite Definition

Definition of Anthracite and Andesite

The general Anthracite and Andesite definition can be stated as: Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. On the other hand, Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Along with definition of Anthracite and Andesite, get to know about Properties of Anthracite and Andesite. Get to know more information about Anthracite and Andesite origin and discoverer, etymology and class.

History of Anthracite and Andesite

The history of Anthracite and Andesite 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.

Anthracite and Andesite Origin and Discoverer

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

Etymology of Anthracite and Andesite

Along with Anthracite and Andesite definition, know more about the etymology of Anthracite and Andesite. Etymology of Anthracite and Andesite gives information about origin and formation of a particular rock. Know more about Formation of Anthracite and Formation of Andesite. The etymology of Anthracite is From Greek anthrakites, from anthrax, anthrak meaning coal while that of Andesite is From Greek anthrakites, from anthrax, anthrak meaning coal. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anthracite belongs to Metamorphic Rocks while Andesite belongs to Igneous Rocks. The sub-class, group and other categories of Anthracite and Andesite are listed below.

For Anthracite,

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

For Andesite,

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