Gabbro and Coal Definition

Definition of Gabbro and Coal

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

History of Gabbro and Coal

The history of Gabbro 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.

Gabbro and Coal Origin and Discoverer

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

Etymology of Gabbro and Coal

Along with Gabbro and Coal definition, know more about the etymology of Gabbro and Coal. Etymology of Gabbro and Coal gives information about origin and formation of a particular rock. Know more about Formation of Gabbro and Formation of Coal. The etymology of Gabbro is From Latin glaber bare, smooth, bald while that of Coal is From Latin glaber bare, smooth, bald. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gabbro belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks. The sub-class, group and other categories of Gabbro and Coal are listed below.

For Gabbro,

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

For Coal,

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