Coal and Norite Definition

Definition of Coal and Norite

The general Coal and Norite 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, Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Along with definition of Coal and Norite, get to know about Properties of Coal and Norite. Get to know more information about Coal and Norite origin and discoverer, etymology and class.

History of Coal and Norite

The history of Coal and Norite 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 Norite Origin and Discoverer

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

Etymology of Coal and Norite

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

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