Picrite and Obsidian Definition

Definition of Picrite and Obsidian

The general Picrite and Obsidian definition can be stated as: Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. 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 Picrite and Obsidian, get to know about Properties of Picrite and Obsidian. Get to know more information about Picrite and Obsidian origin and discoverer, etymology and class.

History of Picrite and Obsidian

The history of Picrite 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.

Picrite and Obsidian Origin and Discoverer

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

Etymology of Picrite and Obsidian

Along with Picrite and Obsidian definition, know more about the etymology of Picrite and Obsidian. Etymology of Picrite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Picrite and Formation of Obsidian. The etymology of Picrite is From Greek pikros bitter + -ite, 19th century while that of Obsidian is From Greek pikros bitter + -ite, 19th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Picrite and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Picrite and Obsidian are listed below.

For Picrite,

• Sub-class: Durable Rock and Hard Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock

For Obsidian,

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