Rhyolite and Anthracite Definition

Definition of Rhyolite and Anthracite

The general Rhyolite and Anthracite definition can be stated as: Rhyolite is a fine-grained igneous rock which is rich in silica. 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 Rhyolite and Anthracite, get to know about Properties of Rhyolite and Anthracite. Get to know more information about Rhyolite and Anthracite origin and discoverer, etymology and class.

History of Rhyolite and Anthracite

The history of Rhyolite 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.

Rhyolite and Anthracite Origin and Discoverer

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

Etymology of Rhyolite and Anthracite

Along with Rhyolite and Anthracite definition, know more about the etymology of Rhyolite and Anthracite. Etymology of Rhyolite and Anthracite gives information about origin and formation of a particular rock. Know more about Formation of Rhyolite and Formation of Anthracite. The etymology of Rhyolite is From German Rhyolit, from Greek rhuax lava stream + lithos stone while that of Anthracite is From German Rhyolit, from Greek rhuax lava stream + lithos stone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Rhyolite belongs to Igneous Rocks while Anthracite belongs to Metamorphic Rocks. The sub-class, group and other categories of Rhyolite and Anthracite are listed below.

For Rhyolite,

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

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