Anorthosite and Coal Definition

Definition of Anorthosite and Coal

The general Anorthosite and Coal definition can be stated as: Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. 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 Anorthosite and Coal, get to know about Properties of Anorthosite and Coal. Get to know more information about Anorthosite and Coal origin and discoverer, etymology and class.

History of Anorthosite and Coal

The history of Anorthosite 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.

Anorthosite and Coal Origin and Discoverer

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

Etymology of Anorthosite and Coal

Along with Anorthosite and Coal definition, know more about the etymology of Anorthosite and Coal. Etymology of Anorthosite and Coal gives information about origin and formation of a particular rock. Know more about Formation of Anorthosite and Formation of Coal. The etymology of Anorthosite is From French anorthose plagioclase + -ite1 while that of Coal is From French anorthose plagioclase + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anorthosite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks. The sub-class, group and other categories of Anorthosite and Coal are listed below.

For Anorthosite,

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