Coal and Basalt Definition

Definition of Coal and Basalt

The general Coal and Basalt 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, Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of Earth. Along with definition of Coal and Basalt, get to know about Properties of Coal and Basalt. Get to know more information about Coal and Basalt origin and discoverer, etymology and class.

History of Coal and Basalt

The history of Coal and Basalt 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 Basalt Origin and Discoverer

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

Etymology of Coal and Basalt

Along with Coal and Basalt definition, know more about the etymology of Coal and Basalt. Etymology of Coal and Basalt gives information about origin and formation of a particular rock. Know more about Formation of Coal and Formation of Basalt. 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 Basalt 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 Basalt belongs to Igneous Rocks. The sub-class, group and other categories of Coal and Basalt are listed below.

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

For Basalt,

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