Coal and Gabbro Definition

Definition of Coal and Gabbro

The general Coal and Gabbro 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, Gabbro is an intrusive igneous rock which is chemically equivalent to plutonic Basalt. Along with definition of Coal and Gabbro, get to know about Properties of Coal and Gabbro. Get to know more information about Coal and Gabbro origin and discoverer, etymology and class.

History of Coal and Gabbro

The history of Coal and Gabbro 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 Gabbro Origin and Discoverer

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

Etymology of Coal and Gabbro

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

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock and Opaque rock