Anthracite and Troctolite Definition

Definition of Anthracite and Troctolite

The general Anthracite and Troctolite definition can be stated as: Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. On the other hand, Troctolite is a mafic intrusive rock type. It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene. It is an olivine-rich anorthosite, or a pyroxene-depleted relative of gabbro. Along with definition of Anthracite and Troctolite, get to know about Properties of Anthracite and Troctolite. Get to know more information about Anthracite and Troctolite origin and discoverer, etymology and class.

History of Anthracite and Troctolite

The history of Anthracite and Troctolite 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.

Anthracite and Troctolite Origin and Discoverer

Anthracite and Troctolite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Anthracite and Troctolite. In this section, you will know about Anthracite and Troctolite Origin and Discoverer. Origin of Anthracite is Pennsylvania, U.S. whereas Origin of Troctolite is Unknown. It is interesting to know the name of Anthracite and Troctolite discoverer. The Discoverer of Anthracite is Unknown and the discoverer of Troctolite is Christian Leopold von Buch.

Etymology of Anthracite and Troctolite

Along with Anthracite and Troctolite definition, know more about the etymology of Anthracite and Troctolite. Etymology of Anthracite and Troctolite gives information about origin and formation of a particular rock. Know more about Formation of Anthracite and Formation of Troctolite. The etymology of Anthracite is From Greek anthrakites, from anthrax, anthrak meaning coal while that of Troctolite is From Greek anthrakites, from anthrax, anthrak meaning coal. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Anthracite belongs to Metamorphic Rocks while Troctolite belongs to Igneous Rocks. The sub-class, group and other categories of Anthracite and Troctolite are listed below.

For Anthracite,

• 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 Troctolite,

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