Anthracite and Dacite Definition

Definition of Anthracite and Dacite

The general Anthracite and Dacite 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, Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. Along with definition of Anthracite and Dacite, get to know about Properties of Anthracite and Dacite. Get to know more information about Anthracite and Dacite origin and discoverer, etymology and class.

History of Anthracite and Dacite

The history of Anthracite and Dacite 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 Dacite Origin and Discoverer

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

Etymology of Anthracite and Dacite

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

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