Anthracite and Siltstone Definition

Definition of Anthracite and Siltstone

The general Anthracite and Siltstone 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, Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt. Along with definition of Anthracite and Siltstone, get to know about Properties of Anthracite and Siltstone. Get to know more information about Anthracite and Siltstone origin and discoverer, etymology and class.

History of Anthracite and Siltstone

The history of Anthracite and Siltstone 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 Siltstone Origin and Discoverer

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

Etymology of Anthracite and Siltstone

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

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock