Coal and Diabase Definition

Definition of Coal and Diabase

The general Coal and Diabase definition can be stated as: Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. On the other hand, Diabase is a fine-grained igneous rock which is composed mostly of pyroxene and feldspar. Along with definition of Coal and Diabase, get to know about Properties of Coal and Diabase. Get to know more information about Coal and Diabase origin and discoverer, etymology and class.

History of Coal and Diabase

The history of Coal and Diabase 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.

Coal and Diabase Origin and Discoverer

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

Etymology of Coal and Diabase

Along with Coal and Diabase definition, know more about the etymology of Coal and Diabase. Etymology of Coal and Diabase gives information about origin and formation of a particular rock. Know more about Formation of Coal and Formation of Diabase. The etymology of Coal is From the Old English term col, which has meant mineral of fossilized carbon since the 13th century while that of Diabase is From the Old English term col, which has meant mineral of fossilized carbon since the 13th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Coal belongs to Sedimentary Rocks while Diabase belongs to Igneous Rocks. The sub-class, group and other categories of Coal and Diabase are listed below.

For Coal,

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

For Diabase,

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