Amphibolite and Coal Definition

Definition of Amphibolite and Coal

The general Amphibolite and Coal definition can be stated as: Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and 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 Amphibolite and Coal, get to know about Properties of Amphibolite and Coal. Get to know more information about Amphibolite and Coal origin and discoverer, etymology and class.

History of Amphibolite and Coal

The history of Amphibolite 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.

Amphibolite and Coal Origin and Discoverer

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

Etymology of Amphibolite and Coal

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

For Amphibolite,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Medium 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