Troctolite and Obsidian Definition

Definition of Troctolite and Obsidian

The general Troctolite and Obsidian definition can be stated as: 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. On the other hand, Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Along with definition of Troctolite and Obsidian, get to know about Properties of Troctolite and Obsidian. Get to know more information about Troctolite and Obsidian origin and discoverer, etymology and class.

History of Troctolite and Obsidian

The history of Troctolite and Obsidian 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.

Troctolite and Obsidian Origin and Discoverer

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

Etymology of Troctolite and Obsidian

Along with Troctolite and Obsidian definition, know more about the etymology of Troctolite and Obsidian. Etymology of Troctolite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Troctolite and Formation of Obsidian. The etymology of Troctolite is From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout) while that of Obsidian is From German Troklotit, from Greek trōktēs, a marine fish (taken to be trout). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Troctolite and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Troctolite and Obsidian are listed below.

For Troctolite,

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

For Obsidian,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Opaque rock