Basalt and Coal Definition

Definition of Basalt and Coal

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

History of Basalt and Coal

The history of Basalt 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.

Basalt and Coal Origin and Discoverer

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

Etymology of Basalt and Coal

Along with Basalt and Coal definition, know more about the etymology of Basalt and Coal. Etymology of Basalt and Coal gives information about origin and formation of a particular rock. Know more about Formation of Basalt and Formation of Coal. The etymology of Basalt is From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites while that of Coal is From Late Latin Basaltes (variant of basanites ), very hard stone, which was imported from Ancient Greek Basanites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Basalt belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks. The sub-class, group and other categories of Basalt and Coal are listed below.

For Basalt,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• 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