Hornblendite and Obsidian Definition

Definition of Hornblendite and Obsidian

The general Hornblendite and Obsidian definition can be stated as: Hornblendite is a type of igneous plutonic rock consisting mainly of amphibole hornblende and is a type of Amphibolite rock. 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 Hornblendite and Obsidian, get to know about Properties of Hornblendite and Obsidian. Get to know more information about Hornblendite and Obsidian origin and discoverer, etymology and class.

History of Hornblendite and Obsidian

The history of Hornblendite 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.

Hornblendite and Obsidian Origin and Discoverer

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

Etymology of Hornblendite and Obsidian

Along with Hornblendite and Obsidian definition, know more about the etymology of Hornblendite and Obsidian. Etymology of Hornblendite and Obsidian gives information about origin and formation of a particular rock. Know more about Formation of Hornblendite and Formation of Obsidian. The etymology of Hornblendite is From German, Horn horn + blende while that of Obsidian is From German, Horn horn + blende. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Hornblendite and Obsidian belong to Igneous Rocks. The sub-class, group and other categories of Hornblendite and Obsidian are listed below.

For Hornblendite,

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

For Obsidian,

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