Coal and Dunite Definition

Definition of Coal and Dunite

The general Coal and Dunite 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, Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Along with definition of Coal and Dunite, get to know about Properties of Coal and Dunite. Get to know more information about Coal and Dunite origin and discoverer, etymology and class.

History of Coal and Dunite

The history of Coal and Dunite 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 Dunite Origin and Discoverer

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

Etymology of Coal and Dunite

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

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