Anthracite and Adakite Definition

Definition of Anthracite and Adakite

The general Anthracite and Adakite 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, Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs. Along with definition of Anthracite and Adakite, get to know about Properties of Anthracite and Adakite. Get to know more information about Anthracite and Adakite origin and discoverer, etymology and class.

History of Anthracite and Adakite

The history of Anthracite and Adakite 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 Adakite Origin and Discoverer

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

Etymology of Anthracite and Adakite

Along with Anthracite and Adakite definition, know more about the etymology of Anthracite and Adakite. Etymology of Anthracite and Adakite gives information about origin and formation of a particular rock. Know more about Formation of Anthracite and Formation of Adakite. The etymology of Anthracite is From Greek anthrakites, from anthrax, anthrak meaning coal while that of Adakite 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 Adakite belongs to Igneous Rocks. The sub-class, group and other categories of Anthracite and Adakite 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 Adakite,

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