Claystone and Coal Definition

Definition of Claystone and Coal

The general Claystone and Coal definition can be stated as: Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay. On the other hand, Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. Along with definition of Claystone and Coal, get to know about Properties of Claystone and Coal. Get to know more information about Claystone and Coal origin and discoverer, etymology and class.

History of Claystone and Coal

The history of Claystone and Coal 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.

Claystone and Coal Origin and Discoverer

Claystone and Coal definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Claystone and Coal. In this section, you will know about Claystone and Coal Origin and Discoverer. Origin of Claystone is Unknown whereas Origin of Coal is USA. It is interesting to know the name of Claystone and Coal discoverer. The Discoverer of Claystone is Unknown and the discoverer of Coal is John Peter Salley.

Etymology of Claystone and Coal

Along with Claystone and Coal definition, know more about the etymology of Claystone and Coal. Etymology of Claystone and Coal gives information about origin and formation of a particular rock. Know more about Formation of Claystone and Formation of Coal. The etymology of Claystone is From English clay and stone as the rock contains more amount of clay while that of Coal is From English clay and stone as the rock contains more amount of clay. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Claystone and Coal belong to Sedimentary Rocks. The sub-class, group and other categories of Claystone and Coal are listed below.

For Claystone,

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

For Coal,

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